GHSA-W22P-4X9F-486V

Vulnerability from github – Published: 2026-04-29 15:30 – Updated: 2026-05-06 22:50
VLAI?
Summary
Jenkins GitHub Plugin has an XSS vulnerability
Details

In Jenkins GitHub Plugin versions 1.46.0 and earlier, the JavaScript that validates the "GitHub hook trigger for GITScm polling" feature improperly processes the current job URL.

This results in a stored cross-site scripting (XSS) vulnerability exploitable by non-anonymous attackers with Overall/Read permission.

GitHub Plugin 1.46.0.1 no longer processes the current job URL as part of JavaScript implementing validation of the feature "GitHub hook trigger for GITScm polling".

Severity ?
9.0 (Critical)
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H
Show details on source website
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{
  "affected": [
    {
      "package": {
        "ecosystem": "Maven",
        "name": "org.jenkins-ci.plugins:git"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "1.46.0.1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2026-42523"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-79"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2026-05-06T22:50:26Z",
    "nvd_published_at": "2026-04-29T14:16:19Z",
    "severity": "CRITICAL"
  },
  "details": "In Jenkins GitHub Plugin versions 1.46.0 and earlier, the JavaScript that validates the \"GitHub hook trigger for GITScm polling\" feature improperly processes the current job URL.\n\nThis results in a stored cross-site scripting (XSS) vulnerability exploitable by non-anonymous attackers with Overall/Read permission.\n\nGitHub Plugin 1.46.0.1 no longer processes the current job URL as part of JavaScript implementing validation of the feature \"GitHub hook trigger for GITScm polling\".",
  "id": "GHSA-w22p-4x9f-486v",
  "modified": "2026-05-06T22:50:26Z",
  "published": "2026-04-29T15:30:38Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-42523"
    },
    {
      "type": "WEB",
      "url": "https://www.jenkins.io/security/advisory/2026-04-29/#SECURITY-3704"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "Jenkins GitHub Plugin has an XSS vulnerability"
}


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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

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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.