GHSA-G3CP-PQ72-HJPV

Vulnerability from github – Published: 2025-06-13 14:08 – Updated: 2025-06-13 14:08
VLAI?
Summary
starcitizentools/citizen-skin allows stored XSS in menu heading message
Details

Summary

All system messages in menu headings using the Menu.mustache template are inserted as raw HTML, allowing anybody who can edit those messages to insert arbitrary HTML into the DOM.

Details

The system messages for menu headings are inserted unescaped into raw HTML: https://github.com/StarCitizenTools/mediawiki-skins-Citizen/blob/072e4365e9084e4b153eac62d3666566c06f5a49/templates/Menu.mustache#L8-L10

PoC

  1. Go to any article using citizen with the uselang parameter set to x-xss
  2. A large number of alerts will be shown for various messages, e.g.: image image

On the main page of my test wiki, the following messages were shown: navigation, notifications, user-interface-preferences, personaltools, variants, views, associated-pages, cactions and toolbox.

Impact

This impacts wikis where a group has the editinterface but not the editsitejs user right.

Severity ?
6.5 (Medium)
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:N
Show details on source website
To clipboard 

{
  "affected": [
    {
      "package": {
        "ecosystem": "Packagist",
        "name": "starcitizentools/citizen-skin"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "2.4.2"
            },
            {
              "fixed": "3.3.1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2025-49579"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-79"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2025-06-13T14:08:31Z",
    "nvd_published_at": "2025-06-12T19:15:20Z",
    "severity": "MODERATE"
  },
  "details": "### Summary\nAll system messages in menu headings using the Menu.mustache template are inserted as raw HTML, allowing anybody who can edit those messages to insert arbitrary HTML into the DOM.\n\n### Details\nThe system messages for menu headings are inserted unescaped into raw HTML:\nhttps://github.com/StarCitizenTools/mediawiki-skins-Citizen/blob/072e4365e9084e4b153eac62d3666566c06f5a49/templates/Menu.mustache#L8-L10\n\n### PoC\n1. Go to any article using citizen with the `uselang` parameter set to `x-xss`\n2. A large number of alerts will be shown for various messages, e.g.:\n![image](https://github.com/user-attachments/assets/6a18ec77-d2a0-4a0d-b4aa-83359304659a)\n![image](https://github.com/user-attachments/assets/eaadb8e1-58b6-41be-90d2-829c50cf75ac)\n\nOn the main page of my test wiki, the following messages were shown: `navigation`, `notifications`, `user-interface-preferences`, `personaltools`, `variants`, `views`, `associated-pages`, `cactions` and `toolbox`.\n\n### Impact\nThis impacts wikis where a group has the `editinterface` but not the `editsitejs` user right.",
  "id": "GHSA-g3cp-pq72-hjpv",
  "modified": "2025-06-13T14:08:31Z",
  "published": "2025-06-13T14:08:31Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/StarCitizenTools/mediawiki-skins-Citizen/security/advisories/GHSA-g3cp-pq72-hjpv"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-49579"
    },
    {
      "type": "WEB",
      "url": "https://github.com/StarCitizenTools/mediawiki-skins-Citizen/commit/54c8717d45ce1594918f11cb9ce5d0ccd8dfee65"
    },
    {
      "type": "WEB",
      "url": "https://github.com/StarCitizenTools/mediawiki-skins-Citizen/commit/93c36ac778397e0e7c46cf7adb1e5d848265f1bd"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/StarCitizenTools/mediawiki-skins-Citizen"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:N",
      "type": "CVSS_V3"
    }
  ],
  "summary": "starcitizentools/citizen-skin allows stored XSS in menu heading message"
}


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