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    2 vulnerabilities found for WHMCS by WebPros

    CVE-2026-29204 (GCVE-0-2026-29204)

    Vulnerability from nvd – Published: 2026-05-12 17:46 – Updated: 2026-05-12 21:57
    VLAI
    Summary
    Insufficient ownership check in `clientarea.php` allows an authenticated client area user to submit requests using another user’s `addonId` without any ownership validation leading to unauthorized access to the victim's account.
    SSVC
    Exploitation: none Automatable: yes Technical Impact: total
    CISA Coordinator (v2.0.3)
    CWE
    • CWE-639 - Insecure Direct Object Reference (IDOR)
    Assigner
    Impacted products
    Vendor Product Version
    WebPros WHMCS Affected: 7.4.0 , ≤ 18.12.2 (semver)
    Affected: 18.13.0 , < 18.13.3 (semver)
    Affected: 9.0.0 , < 9.0.4 (semver)
    Create a notification for this product.
    Show details on NVD website

    {
      "containers": {
        "adp": [
          {
            "metrics": [
              {
                "other": {
                  "content": {
                    "id": "CVE-2026-29204",
                    "options": [
                      {
                        "Exploitation": "none"
                      },
                      {
                        "Automatable": "yes"
                      },
                      {
                        "Technical Impact": "total"
                      }
                    ],
                    "role": "CISA Coordinator",
                    "timestamp": "2026-05-12T21:10:39.672400Z",
                    "version": "2.0.3"
                  },
                  "type": "ssvc"
                }
              }
            ],
            "providerMetadata": {
              "dateUpdated": "2026-05-12T21:13:06.404Z",
              "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
              "shortName": "CISA-ADP"
            },
            "title": "CISA ADP Vulnrichment"
          }
        ],
        "cna": {
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            {
              "defaultStatus": "unaffected",
              "product": "WHMCS",
              "vendor": "WebPros",
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                {
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                  "status": "affected",
                  "version": "7.4.0",
                  "versionType": "semver"
                },
                {
                  "lessThan": "18.13.3",
                  "status": "affected",
                  "version": "18.13.0",
                  "versionType": "semver"
                },
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                  "status": "affected",
                  "version": "9.0.0",
                  "versionType": "semver"
                }
              ]
            }
          ],
          "descriptions": [
            {
              "lang": "en",
              "value": "Insufficient ownership check in `clientarea.php` allows an authenticated client area user to submit requests using another user\u2019s `addonId` without any ownership validation leading to unauthorized access to the victim\u0027s account."
            }
          ],
          "metrics": [
            {
              "cvssV3_1": {
                "baseScore": 9.1,
                "baseSeverity": "CRITICAL",
                "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N",
                "version": "3.1"
              }
            }
          ],
          "problemTypes": [
            {
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            "dateUpdated": "2026-05-12T21:57:08.277Z",
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            "shortName": "hackerone"
          },
          "references": [
            {
              "url": "https://help.whmcs.com/m/125386/l/2073908-cve-2026-29204"
            }
          ]
        }
      },
      "cveMetadata": {
        "assignerOrgId": "36234546-b8fa-4601-9d6f-f4e334aa8ea1",
        "assignerShortName": "hackerone",
        "cveId": "CVE-2026-29204",
        "datePublished": "2026-05-12T17:46:55.152Z",
        "dateReserved": "2026-03-04T15:00:09.267Z",
        "dateUpdated": "2026-05-12T21:57:08.277Z",
        "state": "PUBLISHED"
      },
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }

    CVE-2026-29204 (GCVE-0-2026-29204)

    Vulnerability from cvelistv5 – Published: 2026-05-12 17:46 – Updated: 2026-05-12 21:57
    VLAI
    Summary
    Insufficient ownership check in `clientarea.php` allows an authenticated client area user to submit requests using another user’s `addonId` without any ownership validation leading to unauthorized access to the victim's account.
    SSVC
    Exploitation: none Automatable: yes Technical Impact: total
    CISA Coordinator (v2.0.3)
    CWE
    • CWE-639 - Insecure Direct Object Reference (IDOR)
    Assigner
    Impacted products
    Vendor Product Version
    WebPros WHMCS Affected: 7.4.0 , ≤ 18.12.2 (semver)
    Affected: 18.13.0 , < 18.13.3 (semver)
    Affected: 9.0.0 , < 9.0.4 (semver)
    Create a notification for this product.
    Show details on NVD website

    {
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        "adp": [
          {
            "metrics": [
              {
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                  "content": {
                    "id": "CVE-2026-29204",
                    "options": [
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                        "Exploitation": "none"
                      },
                      {
                        "Automatable": "yes"
                      },
                      {
                        "Technical Impact": "total"
                      }
                    ],
                    "role": "CISA Coordinator",
                    "timestamp": "2026-05-12T21:10:39.672400Z",
                    "version": "2.0.3"
                  },
                  "type": "ssvc"
                }
              }
            ],
            "providerMetadata": {
              "dateUpdated": "2026-05-12T21:13:06.404Z",
              "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
              "shortName": "CISA-ADP"
            },
            "title": "CISA ADP Vulnrichment"
          }
        ],
        "cna": {
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            {
              "defaultStatus": "unaffected",
              "product": "WHMCS",
              "vendor": "WebPros",
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                  "status": "affected",
                  "version": "7.4.0",
                  "versionType": "semver"
                },
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                  "lessThan": "18.13.3",
                  "status": "affected",
                  "version": "18.13.0",
                  "versionType": "semver"
                },
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                  "version": "9.0.0",
                  "versionType": "semver"
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          ],
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          ],
          "metrics": [
            {
              "cvssV3_1": {
                "baseScore": 9.1,
                "baseSeverity": "CRITICAL",
                "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N",
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              }
            }
          ],
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            "shortName": "hackerone"
          },
          "references": [
            {
              "url": "https://help.whmcs.com/m/125386/l/2073908-cve-2026-29204"
            }
          ]
        }
      },
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        "dateReserved": "2026-03-04T15:00:09.267Z",
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      },
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