Vulnerability-Lookup

ubuntu-cve-2023-2142

Vulnerability from osv_ubuntu

Published

2024-11-26 12:15

Modified

2026-05-20 15:01

Summary

Details

In Nunjucks versions prior to version 3.2.4, it was possible to bypass the restrictions which are provided by the autoescape functionality. If there are two user-controlled parameters on the same line used in the views, it was possible to inject cross site scripting payloads using the backslash \ character.

Severity

6.1 (Medium)


                    
                      CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

N/A (UNKNOWN)


                    
                      medium

References

URL

Type

	https://ubuntu.com/security/CVE-2023-2142	REPORT
	https://www.cve.org/CVERecord?id=CVE-2023-2142	REPORT
	https://github.com/mozilla/nunjucks/security/advi…	REPORT

JSON

To clipboard

{
  "affected": [
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "node-nunjucks",
            "binary_version": "3.2.3+dfsg+~cs1.0.1-3"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:24.04:LTS",
        "name": "node-nunjucks",
        "purl": "pkg:deb/ubuntu/node-nunjucks@3.2.3+dfsg+~cs1.0.1-3?arch=source\u0026distro=noble"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "3.2.3+dfsg+~cs1.0.1-3"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "node-nunjucks",
            "binary_version": "3.2.4+~cs4.2.7-1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:25.10",
        "name": "node-nunjucks",
        "purl": "pkg:deb/ubuntu/node-nunjucks@3.2.4+~cs4.2.7-1?arch=source\u0026distro=questing"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "3.2.3+dfsg+~cs1.0.1-3",
        "3.2.4+~cs4.2.7-1"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "node-nunjucks",
            "binary_version": "3.2.4+~cs4.2.7-2"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:26.04:LTS",
        "name": "node-nunjucks",
        "purl": "pkg:deb/ubuntu/node-nunjucks@3.2.4+~cs4.2.7-2?arch=source\u0026distro=resolute"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "3.2.4+~cs4.2.7-1",
        "3.2.4+~cs4.2.7-2"
      ]
    }
  ],
  "aliases": [],
  "details": "In Nunjucks versions prior to version 3.2.4, it was possible to bypass the restrictions which are provided by the autoescape  functionality. If there are two user-controlled parameters on the same line used in the views, it was possible to inject cross site scripting payloads using the backslash \\ character.",
  "id": "UBUNTU-CVE-2023-2142",
  "modified": "2026-05-20T15:01:56Z",
  "published": "2024-11-26T12:15:00Z",
  "references": [
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2023-2142"
    },
    {
      "type": "REPORT",
      "url": "https://www.cve.org/CVERecord?id=CVE-2023-2142"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/mozilla/nunjucks/security/advisories/GHSA-x77j-w7wf-fjmw"
    }
  ],
  "related": [],
  "schema_version": "1.7.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N",
      "type": "CVSS_V3"
    },
    {
      "score": "medium",
      "type": "Ubuntu"
    }
  ],
  "upstream": [
    "CVE-2023-2142"
  ]
}

CVE-2023-2142 (GCVE-0-2023-2142)

Vulnerability from cvelistv5 – Published: 2024-11-26 11:24 – Updated: 2024-11-27 16:19

Title

Nunjucks autoescape bypass leads to cross site scripting

Summary

Severity

6.1 (Medium)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

SSVC

Exploitation: poc Automatable: no Technical Impact: partial

CISA Coordinator (v2.0.3)

CWE

CWE-79 - Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting')

Assigner

mozilla

References

2 references

URL	Tags
https://bugzilla.mozilla.org/show_bug.cgi?id=1825980	issue-tracking
https://github.com/mozilla/nunjucks/security/advi…	vendor-advisory

Impacted products

2 products

Vendor	Product	Version
Mozilla	Nunjucks	Affected: 0 , < 3.2.4 (semver)
mozilla	nunjucks	Affected: 0 , < 3.2.4 (semver) cpe:2.3:a:mozilla:nunjucks::::::::

Credits

blaiddx64

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "affected": [
          {
            "cpes": [
              "cpe:2.3:a:mozilla:nunjucks:*:*:*:*:*:*:*:*"
            ],
            "defaultStatus": "unknown",
            "product": "nunjucks",
            "vendor": "mozilla",
            "versions": [
              {
                "lessThan": "3.2.4",
                "status": "affected",
                "version": "0",
                "versionType": "semver"
              }
            ]
          }
        ],
        "metrics": [
          {
            "cvssV3_1": {
              "attackComplexity": "LOW",
              "attackVector": "NETWORK",
              "availabilityImpact": "NONE",
              "baseScore": 6.1,
              "baseSeverity": "MEDIUM",
              "confidentialityImpact": "LOW",
              "integrityImpact": "LOW",
              "privilegesRequired": "NONE",
              "scope": "CHANGED",
              "userInteraction": "REQUIRED",
              "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N",
              "version": "3.1"
            }
          },
          {
            "other": {
              "content": {
                "id": "CVE-2023-2142",
                "options": [
                  {
                    "Exploitation": "poc"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2024-11-27T16:17:55.829952Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2024-11-27T16:19:44.548Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unknown",
          "product": "Nunjucks",
          "vendor": "Mozilla",
          "versions": [
            {
              "lessThan": "3.2.4",
              "status": "affected",
              "version": "0",
              "versionType": "semver"
            }
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "type": "finder",
          "value": "blaiddx64"
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "supportingMedia": [
            {
              "base64": false,
              "type": "text/html",
              "value": "\u003cp\u003eIn Nunjucks versions prior to version 3.2.4, it was \npossible to bypass the restrictions which are provided by the autoescape\n functionality. If there are two user-controlled parameters on the same \nline used in the views, it was possible to inject cross site scripting \npayloads using the backslash \u003ccode\u003e\\\u003c/code\u003e character.\u003c/p\u003e"
            }
          ],
          "value": "In Nunjucks versions prior to version 3.2.4, it was \npossible to bypass the restrictions which are provided by the autoescape\n functionality. If there are two user-controlled parameters on the same \nline used in the views, it was possible to inject cross site scripting \npayloads using the backslash \\ character."
        }
      ],
      "impacts": [
        {
          "capecId": "CAPEC-63",
          "descriptions": [
            {
              "lang": "en",
              "value": "CAPEC-63 Cross-Site Scripting (XSS)"
            }
          ]
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-79",
              "description": "CWE-79 Improper Neutralization of Input During Web Page Generation (XSS or \u0027Cross-site Scripting\u0027)",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2024-11-26T11:24:15.422Z",
        "orgId": "f16b083a-5664-49f3-a51e-8d479e5ed7fe",
        "shortName": "mozilla"
      },
      "references": [
        {
          "tags": [
            "issue-tracking"
          ],
          "url": "https://bugzilla.mozilla.org/show_bug.cgi?id=1825980"
        },
        {
          "tags": [
            "vendor-advisory"
          ],
          "url": "https://github.com/mozilla/nunjucks/security/advisories/GHSA-x77j-w7wf-fjmw"
        }
      ],
      "source": {
        "discovery": "UNKNOWN"
      },
      "title": "Nunjucks autoescape bypass leads to cross site scripting",
      "x_generator": {
        "engine": "Vulnogram 0.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "f16b083a-5664-49f3-a51e-8d479e5ed7fe",
    "assignerShortName": "mozilla",
    "cveId": "CVE-2023-2142",
    "datePublished": "2024-11-26T11:24:15.422Z",
    "dateReserved": "2023-04-18T08:19:20.097Z",
    "dateUpdated": "2024-11-27T16:19:44.548Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}

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.

Action not permitted

ubuntu-cve-2023-2142

Vulnerability from osv_ubuntu

CVE-2023-2142 (GCVE-0-2023-2142)

Tags

Sightings

Nomenclature