Vulnerability-Lookup

CVE-2026-34151 (GCVE-0-2026-34151)

Vulnerability from cvelistv5 – Published: 2026-09-14 17:12 – Updated: 2026-09-14 18:56

Title

XWiki Platform: Resource path traversal via /skin/ action endpoint in Jetty 12+

Summary

XWiki Platform is a generic wiki platform. Prior to 17.10.5 and 18.2.0, the /skin/ action in com.xpn.xwiki.web.SkinAction can resolve double-encoded parent-directory segments outside the intended skin or web-application resource prefix when Jetty 12 or later decodes the request path. The affected lookup is replaced with Environment.getResourceAsStream(String, String), which constrains a resource to its expected prefix. An unauthenticated remote attacker can use the vulnerable behavior to read arbitrary resources permitted to the Jetty process, including WEB-INF/xwiki.cfg and, depending on deployment depth and operating-system permissions, host files. Tomcat and Jetty versions before 12 do not appear affected. This issue is fixed in versions 17.10.5 and 18.2.0.

Severity

8.2 (High)


                        
                          CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N

SSVC

Exploitation: none Automatable: yes Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-09-14 18:56 UTC

CWE

CWE-24 - Path Traversal: '../filedir'

Assigner

GitHub_M mitre root

References

8 references

URL	Tags
https://github.com/xwiki/xwiki-platform/security/…	x_refsource_CONFIRM
https://github.com/xwiki/xwiki-commons/pull/1675	x_refsource_MISC
https://github.com/xwiki/xwiki-platform/commit/79…	x_refsource_MISC
https://github.com/xwiki/xwiki-platform/commit/f7…	x_refsource_MISC
https://github.com/xwiki/xwiki-platform/releases/…	x_refsource_MISC
https://github.com/xwiki/xwiki-platform/releases/…	x_refsource_MISC
https://jira.xwiki.org/browse/XCOMMONS-3594	x_refsource_MISC
https://jira.xwiki.org/browse/XWIKI-24075	x_refsource_MISC

Impacted products

1 product

Vendor	Product	Version	CPE status
xwiki	xwiki-platform	Affected: < 17.10.5 Affected: >= 18.0.0-rc-1, < 18.2.0	guessed

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-34151",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "yes"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-09-14T18:56:04.582032Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-09-14T18:56:11.951Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "xwiki-platform",
          "vendor": "xwiki",
          "versions": [
            {
              "status": "affected",
              "version": "\u003c 17.10.5"
            },
            {
              "status": "affected",
              "version": "\u003e= 18.0.0-rc-1, \u003c 18.2.0"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "XWiki Platform is a generic wiki platform. Prior to 17.10.5 and 18.2.0, the /skin/ action in com.xpn.xwiki.web.SkinAction can resolve double-encoded parent-directory segments outside the intended skin or web-application resource prefix when Jetty 12 or later decodes the request path. The affected lookup is replaced with Environment.getResourceAsStream(String, String), which constrains a resource to its expected prefix. An unauthenticated remote attacker can use the vulnerable behavior to read arbitrary resources permitted to the Jetty process, including WEB-INF/xwiki.cfg and, depending on deployment depth and operating-system permissions, host files. Tomcat and Jetty versions before 12 do not appear affected. This issue is fixed in versions 17.10.5 and 18.2.0."
        }
      ],
      "metrics": [
        {
          "cvssV4_0": {
            "attackComplexity": "LOW",
            "attackRequirements": "PRESENT",
            "attackVector": "NETWORK",
            "baseScore": 8.2,
            "baseSeverity": "HIGH",
            "privilegesRequired": "NONE",
            "subAvailabilityImpact": "NONE",
            "subConfidentialityImpact": "NONE",
            "subIntegrityImpact": "NONE",
            "userInteraction": "NONE",
            "vectorString": "CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N",
            "version": "4.0",
            "vulnAvailabilityImpact": "NONE",
            "vulnConfidentialityImpact": "HIGH",
            "vulnIntegrityImpact": "NONE"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-24",
              "description": "CWE-24: Path Traversal: \u0027../filedir\u0027",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-09-14T17:12:18.814Z",
        "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "shortName": "GitHub_M"
      },
      "references": [
        {
          "name": "https://github.com/xwiki/xwiki-platform/security/advisories/GHSA-qj4x-9g63-25g6",
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://github.com/xwiki/xwiki-platform/security/advisories/GHSA-qj4x-9g63-25g6"
        },
        {
          "name": "https://github.com/xwiki/xwiki-commons/pull/1675",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/xwiki/xwiki-commons/pull/1675"
        },
        {
          "name": "https://github.com/xwiki/xwiki-platform/commit/79eba8655f3a96021a8e7ad07956e48d20a82383",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/xwiki/xwiki-platform/commit/79eba8655f3a96021a8e7ad07956e48d20a82383"
        },
        {
          "name": "https://github.com/xwiki/xwiki-platform/commit/f7b33704083d3b4e45d1b9fc1e2cc33c66855f85",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/xwiki/xwiki-platform/commit/f7b33704083d3b4e45d1b9fc1e2cc33c66855f85"
        },
        {
          "name": "https://github.com/xwiki/xwiki-platform/releases/tag/xwiki-platform-17.10.5",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/xwiki/xwiki-platform/releases/tag/xwiki-platform-17.10.5"
        },
        {
          "name": "https://github.com/xwiki/xwiki-platform/releases/tag/xwiki-platform-18.2.0",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/xwiki/xwiki-platform/releases/tag/xwiki-platform-18.2.0"
        },
        {
          "name": "https://jira.xwiki.org/browse/XCOMMONS-3594",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://jira.xwiki.org/browse/XCOMMONS-3594"
        },
        {
          "name": "https://jira.xwiki.org/browse/XWIKI-24075",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://jira.xwiki.org/browse/XWIKI-24075"
        }
      ],
      "source": {
        "advisory": "GHSA-qj4x-9g63-25g6",
        "discovery": "UNKNOWN"
      },
      "title": "XWiki Platform: Resource path traversal via /skin/ action endpoint in Jetty 12+"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
    "assignerShortName": "GitHub_M",
    "cveId": "CVE-2026-34151",
    "datePublished": "2026-09-14T17:12:18.814Z",
    "dateReserved": "2026-03-25T20:12:04.196Z",
    "dateUpdated": "2026-09-14T18:56:11.951Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "epss": {
      "cve": "CVE-2026-34151",
      "date": "2026-09-19",
      "epss": "0.00542",
      "percentile": "0.44477"
    },
    "nvd": {
      "cve": {
        "affected": [
          {
            "affectedData": [
              {
                "product": "xwiki-platform",
                "vendor": "xwiki",
                "versions": [
                  {
                    "status": "affected",
                    "version": "\u003c 17.10.5"
                  },
                  {
                    "status": "affected",
                    "version": "\u003e= 18.0.0-rc-1, \u003c 18.2.0"
                  }
                ]
              }
            ],
            "source": "security-advisories@github.com"
          }
        ],
        "cveTags": [],
        "descriptions": [
          {
            "lang": "en",
            "value": "XWiki Platform is a generic wiki platform. Prior to 17.10.5 and 18.2.0, the /skin/ action in com.xpn.xwiki.web.SkinAction can resolve double-encoded parent-directory segments outside the intended skin or web-application resource prefix when Jetty 12 or later decodes the request path. The affected lookup is replaced with Environment.getResourceAsStream(String, String), which constrains a resource to its expected prefix. An unauthenticated remote attacker can use the vulnerable behavior to read arbitrary resources permitted to the Jetty process, including WEB-INF/xwiki.cfg and, depending on deployment depth and operating-system permissions, host files. Tomcat and Jetty versions before 12 do not appear affected. This issue is fixed in versions 17.10.5 and 18.2.0."
          }
        ],
        "id": "CVE-2026-34151",
        "lastModified": "2026-09-14T19:17:19.853",
        "metrics": {
          "cvssMetricV40": [
            {
              "cvssData": {
                "Automatable": "NOT_DEFINED",
                "Recovery": "NOT_DEFINED",
                "Safety": "NOT_DEFINED",
                "attackComplexity": "LOW",
                "attackRequirements": "PRESENT",
                "attackVector": "NETWORK",
                "availabilityRequirement": "NOT_DEFINED",
                "baseScore": 8.2,
                "baseSeverity": "HIGH",
                "confidentialityRequirement": "NOT_DEFINED",
                "exploitMaturity": "NOT_DEFINED",
                "integrityRequirement": "NOT_DEFINED",
                "modifiedAttackComplexity": "NOT_DEFINED",
                "modifiedAttackRequirements": "NOT_DEFINED",
                "modifiedAttackVector": "NOT_DEFINED",
                "modifiedPrivilegesRequired": "NOT_DEFINED",
                "modifiedSubAvailabilityImpact": "NOT_DEFINED",
                "modifiedSubConfidentialityImpact": "NOT_DEFINED",
                "modifiedSubIntegrityImpact": "NOT_DEFINED",
                "modifiedUserInteraction": "NOT_DEFINED",
                "modifiedVulnAvailabilityImpact": "NOT_DEFINED",
                "modifiedVulnConfidentialityImpact": "NOT_DEFINED",
                "modifiedVulnIntegrityImpact": "NOT_DEFINED",
                "privilegesRequired": "NONE",
                "providerUrgency": "NOT_DEFINED",
                "subAvailabilityImpact": "NONE",
                "subConfidentialityImpact": "NONE",
                "subIntegrityImpact": "NONE",
                "userInteraction": "NONE",
                "valueDensity": "NOT_DEFINED",
                "vectorString": "CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X",
                "version": "4.0",
                "vulnAvailabilityImpact": "NONE",
                "vulnConfidentialityImpact": "HIGH",
                "vulnIntegrityImpact": "NONE",
                "vulnerabilityResponseEffort": "NOT_DEFINED"
              },
              "source": "security-advisories@github.com",
              "type": "Secondary"
            }
          ],
          "ssvcV203": [
            {
              "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
              "ssvcData": {
                "id": "CVE-2026-34151",
                "options": [
                  {
                    "exploitation": "none"
                  },
                  {
                    "automatable": "yes"
                  },
                  {
                    "technicalImpact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-09-14T18:56:04.582032Z",
                "version": "2.0.3"
              }
            }
          ]
        },
        "published": "2026-09-14T18:17:47.107",
        "references": [
          {
            "source": "security-advisories@github.com",
            "url": "https://github.com/xwiki/xwiki-commons/pull/1675"
          },
          {
            "source": "security-advisories@github.com",
            "url": "https://github.com/xwiki/xwiki-platform/commit/79eba8655f3a96021a8e7ad07956e48d20a82383"
          },
          {
            "source": "security-advisories@github.com",
            "url": "https://github.com/xwiki/xwiki-platform/commit/f7b33704083d3b4e45d1b9fc1e2cc33c66855f85"
          },
          {
            "source": "security-advisories@github.com",
            "url": "https://github.com/xwiki/xwiki-platform/releases/tag/xwiki-platform-17.10.5"
          },
          {
            "source": "security-advisories@github.com",
            "url": "https://github.com/xwiki/xwiki-platform/releases/tag/xwiki-platform-18.2.0"
          },
          {
            "source": "security-advisories@github.com",
            "url": "https://github.com/xwiki/xwiki-platform/security/advisories/GHSA-qj4x-9g63-25g6"
          },
          {
            "source": "security-advisories@github.com",
            "url": "https://jira.xwiki.org/browse/XCOMMONS-3594"
          },
          {
            "source": "security-advisories@github.com",
            "url": "https://jira.xwiki.org/browse/XWIKI-24075"
          }
        ],
        "sourceIdentifier": "security-advisories@github.com",
        "vulnStatus": "Received",
        "weaknesses": [
          {
            "description": [
              {
                "lang": "en",
                "value": "CWE-24"
              }
            ],
            "source": "security-advisories@github.com",
            "type": "Secondary"
          }
        ]
      }
    },
    "vulnrichment": {
      "containers": {
        "adp": [
          {
            "metrics": [
              {
                "other": {
                  "content": {
                    "id": "CVE-2026-34151",
                    "options": [
                      {
                        "Exploitation": "none"
                      },
                      {
                        "Automatable": "yes"
                      },
                      {
                        "Technical Impact": "partial"
                      }
                    ],
                    "role": "CISA Coordinator",
                    "timestamp": "2026-09-14T18:56:04.582032Z",
                    "version": "2.0.3"
                  },
                  "type": "ssvc"
                }
              }
            ],
            "providerMetadata": {
              "dateUpdated": "2026-09-14T18:56:07.351Z",
              "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
              "shortName": "CISA-ADP"
            },
            "title": "CISA ADP Vulnrichment"
          }
        ],
        "cna": {
          "affected": [
            {
              "product": "xwiki-platform",
              "vendor": "xwiki",
              "versions": [
                {
                  "status": "affected",
                  "version": "\u003c 17.10.5"
                },
                {
                  "status": "affected",
                  "version": "\u003e= 18.0.0-rc-1, \u003c 18.2.0"
                }
              ]
            }
          ],
          "descriptions": [
            {
              "lang": "en",
              "value": "XWiki Platform is a generic wiki platform. Prior to 17.10.5 and 18.2.0, the /skin/ action in com.xpn.xwiki.web.SkinAction can resolve double-encoded parent-directory segments outside the intended skin or web-application resource prefix when Jetty 12 or later decodes the request path. The affected lookup is replaced with Environment.getResourceAsStream(String, String), which constrains a resource to its expected prefix. An unauthenticated remote attacker can use the vulnerable behavior to read arbitrary resources permitted to the Jetty process, including WEB-INF/xwiki.cfg and, depending on deployment depth and operating-system permissions, host files. Tomcat and Jetty versions before 12 do not appear affected. This issue is fixed in versions 17.10.5 and 18.2.0."
            }
          ],
          "metrics": [
            {
              "cvssV4_0": {
                "attackComplexity": "LOW",
                "attackRequirements": "PRESENT",
                "attackVector": "NETWORK",
                "baseScore": 8.2,
                "baseSeverity": "HIGH",
                "privilegesRequired": "NONE",
                "subAvailabilityImpact": "NONE",
                "subConfidentialityImpact": "NONE",
                "subIntegrityImpact": "NONE",
                "userInteraction": "NONE",
                "vectorString": "CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N",
                "version": "4.0",
                "vulnAvailabilityImpact": "NONE",
                "vulnConfidentialityImpact": "HIGH",
                "vulnIntegrityImpact": "NONE"
              }
            }
          ],
          "problemTypes": [
            {
              "descriptions": [
                {
                  "cweId": "CWE-24",
                  "description": "CWE-24: Path Traversal: \u0027../filedir\u0027",
                  "lang": "en",
                  "type": "CWE"
                }
              ]
            }
          ],
          "providerMetadata": {
            "dateUpdated": "2026-09-14T17:12:18.814Z",
            "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
            "shortName": "GitHub_M"
          },
          "references": [
            {
              "name": "https://github.com/xwiki/xwiki-platform/security/advisories/GHSA-qj4x-9g63-25g6",
              "tags": [
                "x_refsource_CONFIRM"
              ],
              "url": "https://github.com/xwiki/xwiki-platform/security/advisories/GHSA-qj4x-9g63-25g6"
            },
            {
              "name": "https://github.com/xwiki/xwiki-commons/pull/1675",
              "tags": [
                "x_refsource_MISC"
              ],
              "url": "https://github.com/xwiki/xwiki-commons/pull/1675"
            },
            {
              "name": "https://github.com/xwiki/xwiki-platform/commit/79eba8655f3a96021a8e7ad07956e48d20a82383",
              "tags": [
                "x_refsource_MISC"
              ],
              "url": "https://github.com/xwiki/xwiki-platform/commit/79eba8655f3a96021a8e7ad07956e48d20a82383"
            },
            {
              "name": "https://github.com/xwiki/xwiki-platform/commit/f7b33704083d3b4e45d1b9fc1e2cc33c66855f85",
              "tags": [
                "x_refsource_MISC"
              ],
              "url": "https://github.com/xwiki/xwiki-platform/commit/f7b33704083d3b4e45d1b9fc1e2cc33c66855f85"
            },
            {
              "name": "https://github.com/xwiki/xwiki-platform/releases/tag/xwiki-platform-17.10.5",
              "tags": [
                "x_refsource_MISC"
              ],
              "url": "https://github.com/xwiki/xwiki-platform/releases/tag/xwiki-platform-17.10.5"
            },
            {
              "name": "https://github.com/xwiki/xwiki-platform/releases/tag/xwiki-platform-18.2.0",
              "tags": [
                "x_refsource_MISC"
              ],
              "url": "https://github.com/xwiki/xwiki-platform/releases/tag/xwiki-platform-18.2.0"
            },
            {
              "name": "https://jira.xwiki.org/browse/XCOMMONS-3594",
              "tags": [
                "x_refsource_MISC"
              ],
              "url": "https://jira.xwiki.org/browse/XCOMMONS-3594"
            },
            {
              "name": "https://jira.xwiki.org/browse/XWIKI-24075",
              "tags": [
                "x_refsource_MISC"
              ],
              "url": "https://jira.xwiki.org/browse/XWIKI-24075"
            }
          ],
          "source": {
            "advisory": "GHSA-qj4x-9g63-25g6",
            "discovery": "UNKNOWN"
          },
          "title": "XWiki Platform: Resource path traversal via /skin/ action endpoint in Jetty 12+"
        }
      },
      "cveMetadata": {
        "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "assignerShortName": "GitHub_M",
        "cveId": "CVE-2026-34151",
        "datePublished": "2026-09-14T17:12:18.814Z",
        "dateReserved": "2026-03-25T20:12:04.196Z",
        "dateUpdated": "2026-09-14T18:56:11.951Z",
        "state": "PUBLISHED"
      },
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}

FKIE_CVE-2026-34151

Vulnerability from fkie_nvd - Published: 2026-09-14 18:17 - Updated: 2026-09-14 19:17

Severity

8.2 (High) - CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N

Summary

References

	URL	Tags
	security-advisories@github.com	https://github.com/xwiki/xwiki-commons/pull/1675
	security-advisories@github.com	https://github.com/xwiki/xwiki-platform/commit/79eba8655f3a96021a8e7ad07956e48d20a82383
	security-advisories@github.com	https://github.com/xwiki/xwiki-platform/commit/f7b33704083d3b4e45d1b9fc1e2cc33c66855f85
	security-advisories@github.com	https://github.com/xwiki/xwiki-platform/releases/tag/xwiki-platform-17.10.5
	security-advisories@github.com	https://github.com/xwiki/xwiki-platform/releases/tag/xwiki-platform-18.2.0
	security-advisories@github.com	https://github.com/xwiki/xwiki-platform/security/advisories/GHSA-qj4x-9g63-25g6
	security-advisories@github.com	https://jira.xwiki.org/browse/XCOMMONS-3594
	security-advisories@github.com	https://jira.xwiki.org/browse/XWIKI-24075

Impacted products

	Vendor	Product	Version

JSON

To clipboard

{
  "affected": [
    {
      "affectedData": [
        {
          "product": "xwiki-platform",
          "vendor": "xwiki",
          "versions": [
            {
              "status": "affected",
              "version": "\u003c 17.10.5"
            },
            {
              "status": "affected",
              "version": "\u003e= 18.0.0-rc-1, \u003c 18.2.0"
            }
          ]
        }
      ],
      "source": "security-advisories@github.com"
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "XWiki Platform is a generic wiki platform. Prior to 17.10.5 and 18.2.0, the /skin/ action in com.xpn.xwiki.web.SkinAction can resolve double-encoded parent-directory segments outside the intended skin or web-application resource prefix when Jetty 12 or later decodes the request path. The affected lookup is replaced with Environment.getResourceAsStream(String, String), which constrains a resource to its expected prefix. An unauthenticated remote attacker can use the vulnerable behavior to read arbitrary resources permitted to the Jetty process, including WEB-INF/xwiki.cfg and, depending on deployment depth and operating-system permissions, host files. Tomcat and Jetty versions before 12 do not appear affected. This issue is fixed in versions 17.10.5 and 18.2.0."
    }
  ],
  "id": "CVE-2026-34151",
  "lastModified": "2026-09-14T19:17:19.853",
  "metrics": {
    "cvssMetricV40": [
      {
        "cvssData": {
          "Automatable": "NOT_DEFINED",
          "Recovery": "NOT_DEFINED",
          "Safety": "NOT_DEFINED",
          "attackComplexity": "LOW",
          "attackRequirements": "PRESENT",
          "attackVector": "NETWORK",
          "availabilityRequirement": "NOT_DEFINED",
          "baseScore": 8.2,
          "baseSeverity": "HIGH",
          "confidentialityRequirement": "NOT_DEFINED",
          "exploitMaturity": "NOT_DEFINED",
          "integrityRequirement": "NOT_DEFINED",
          "modifiedAttackComplexity": "NOT_DEFINED",
          "modifiedAttackRequirements": "NOT_DEFINED",
          "modifiedAttackVector": "NOT_DEFINED",
          "modifiedPrivilegesRequired": "NOT_DEFINED",
          "modifiedSubAvailabilityImpact": "NOT_DEFINED",
          "modifiedSubConfidentialityImpact": "NOT_DEFINED",
          "modifiedSubIntegrityImpact": "NOT_DEFINED",
          "modifiedUserInteraction": "NOT_DEFINED",
          "modifiedVulnAvailabilityImpact": "NOT_DEFINED",
          "modifiedVulnConfidentialityImpact": "NOT_DEFINED",
          "modifiedVulnIntegrityImpact": "NOT_DEFINED",
          "privilegesRequired": "NONE",
          "providerUrgency": "NOT_DEFINED",
          "subAvailabilityImpact": "NONE",
          "subConfidentialityImpact": "NONE",
          "subIntegrityImpact": "NONE",
          "userInteraction": "NONE",
          "valueDensity": "NOT_DEFINED",
          "vectorString": "CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X",
          "version": "4.0",
          "vulnAvailabilityImpact": "NONE",
          "vulnConfidentialityImpact": "HIGH",
          "vulnIntegrityImpact": "NONE",
          "vulnerabilityResponseEffort": "NOT_DEFINED"
        },
        "source": "security-advisories@github.com",
        "type": "Secondary"
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2026-34151",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "yes"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2026-09-14T18:56:04.582032Z",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2026-09-14T18:17:47.107",
  "references": [
    {
      "source": "security-advisories@github.com",
      "url": "https://github.com/xwiki/xwiki-commons/pull/1675"
    },
    {
      "source": "security-advisories@github.com",
      "url": "https://github.com/xwiki/xwiki-platform/commit/79eba8655f3a96021a8e7ad07956e48d20a82383"
    },
    {
      "source": "security-advisories@github.com",
      "url": "https://github.com/xwiki/xwiki-platform/commit/f7b33704083d3b4e45d1b9fc1e2cc33c66855f85"
    },
    {
      "source": "security-advisories@github.com",
      "url": "https://github.com/xwiki/xwiki-platform/releases/tag/xwiki-platform-17.10.5"
    },
    {
      "source": "security-advisories@github.com",
      "url": "https://github.com/xwiki/xwiki-platform/releases/tag/xwiki-platform-18.2.0"
    },
    {
      "source": "security-advisories@github.com",
      "url": "https://github.com/xwiki/xwiki-platform/security/advisories/GHSA-qj4x-9g63-25g6"
    },
    {
      "source": "security-advisories@github.com",
      "url": "https://jira.xwiki.org/browse/XCOMMONS-3594"
    },
    {
      "source": "security-advisories@github.com",
      "url": "https://jira.xwiki.org/browse/XWIKI-24075"
    }
  ],
  "sourceIdentifier": "security-advisories@github.com",
  "vulnStatus": "Received",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-24"
        }
      ],
      "source": "security-advisories@github.com",
      "type": "Secondary"
    }
  ]
}

GHSA-QJ4X-9G63-25G6

Vulnerability from github – Published: 2026-07-07 13:01 – Updated: 2026-07-07 13:01

Summary

XWiki Platform Old Core: Resource path traversal via /skin/ action endpoint in Jetty 12+

Details

Impact

With Jetty 12+ a user can craft a URL to access any resource the Jetty instance is allowed to access.

For example http://[host]/xwiki/bin/skin/..%252f/..%252f..%252f..%252f..%252f..%252f..%252f..%252fetc/passwd allows downloading the content of the /etc/passwd file, provided Jetty is allowed to read it, and if your XWiki webapp is located exactly 5 levels below / (like /var/lib/jetty/webapps/xwiki, which is the case in the docker image, for example).

Another example which does not go out of the XWiki webapp, but it's still a vulnerability (since users should not be allowed to access Hibernate or XWiki configuration files) is http://[host]/xwiki/bin/skin/..%252f/..%252fWEB-INF/xwiki.cfg.

Patches

This vulnerability has been patched in XWiki 17.10.5 and 18.2.0.

Workarounds

A possible workaround is to use a different application server, like Jetty < 12 (in the case of XWiki < 17) or Tomcat, which don't seem to be impacted.

Resources

https://jira.xwiki.org/browse/XWIKI-24075
https://jira.xwiki.org/browse/XCOMMONS-3594

For more information

If there are any questions or comments about this advisory: * Open an issue in Jira XWiki.org * Send an email to the Security Mailing List

Attribution

Lê Ngọc Khoa reported the vulnerability.

Severity

8.2 (High)


                  
                    CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N

Show details on source website

JSON

To clipboard

{
  "affected": [
    {
      "package": {
        "ecosystem": "Maven",
        "name": "org.xwiki.platform:xwiki-platform-oldcore"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "17.10.5"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Maven",
        "name": "org.xwiki.platform:xwiki-platform-oldcore"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "18.0.0-rc-1"
            },
            {
              "fixed": "18.2.0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2026-34151"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-24"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2026-07-07T13:01:21Z",
    "nvd_published_at": null,
    "severity": "HIGH"
  },
  "details": "### Impact\n\nWith Jetty 12+ a user can craft a URL to access any resource the Jetty instance is allowed to access.\n\nFor example `http://[host]/xwiki/bin/skin/..%252f/..%252f..%252f..%252f..%252f..%252f..%252f..%252fetc/passwd` allows downloading the content of the /etc/passwd file, provided Jetty is allowed to read it, and if your XWiki webapp is located exactly 5 levels below `/` (like `/var/lib/jetty/webapps/xwiki`, which is the case in the docker image, for example).\n\nAnother example which does not go out of the XWiki webapp, but it\u0027s still a vulnerability (since users should not be allowed to access Hibernate or XWiki configuration files) is `http://[host]/xwiki/bin/skin/..%252f/..%252fWEB-INF/xwiki.cfg`.\n\n### Patches\n\nThis vulnerability has been patched in XWiki 17.10.5 and 18.2.0.\n\n### Workarounds\n\nA possible workaround is to use a different application server, like Jetty \u003c 12 (in the case of XWiki \u003c 17) or Tomcat, which don\u0027t seem to be impacted.\n\n### Resources\n\n* https://jira.xwiki.org/browse/XWIKI-24075\n* https://jira.xwiki.org/browse/XCOMMONS-3594\n\n### For more information\n\nIf there are any questions or comments about this advisory:\n* Open an issue in [Jira XWiki.org](https://jira.xwiki.org/)\n* Send an email to the [Security Mailing List](mailto:security@xwiki.org)\n\n### Attribution\n\n L\u00ea Ng\u1ecdc Khoa reported the vulnerability.",
  "id": "GHSA-qj4x-9g63-25g6",
  "modified": "2026-07-07T13:01:22Z",
  "published": "2026-07-07T13:01:21Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/xwiki/xwiki-platform/security/advisories/GHSA-qj4x-9g63-25g6"
    },
    {
      "type": "WEB",
      "url": "https://github.com/xwiki/xwiki-commons/pull/1675"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/xwiki/xwiki-platform"
    },
    {
      "type": "WEB",
      "url": "https://jira.xwiki.org/browse/XCOMMONS-3594"
    },
    {
      "type": "WEB",
      "url": "https://jira.xwiki.org/browse/XWIKI-24075"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N",
      "type": "CVSS_V4"
    }
  ],
  "summary": "XWiki Platform Old Core: Resource path traversal via /skin/ action endpoint in Jetty 12+"
}

Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.

Action not permitted

CVE-2026-34151 (GCVE-0-2026-34151)

FKIE_CVE-2026-34151

GHSA-QJ4X-9G63-25G6

Impact

Patches

Workarounds

Resources

For more information

Attribution

Tags

Sightings

Nomenclature

Related by attack behaviour