ghsa-jwr7-992g-68mh
Vulnerability from github
Published
2025-06-13 14:08
Modified
2025-06-13 14:08
Severity ?
6.5 (Medium) - CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:N
Summary
starcitizentools/citizen-skin allows stored XSS in preference menu heading messages
Details

Summary

Various preferences messages are inserted into raw HTML, allowing anybody who can edit those messages to insert arbitrary HTML into the DOM.

Details

The innerHtml of the label div is set to the textContent of the label, essentially unsanitizing the system messages: https://github.com/StarCitizenTools/mediawiki-skins-Citizen/blob/407052e7069bdeae927d6f1a2a1c9a45b473bf9a/resources/skins.citizen.preferences/addPortlet.polyfill.js#L18

PoC

  1. Edit citizen-feature-custom-font-size-name (or any other message displayed in a heading in the preferences menu) to <img src="" onerror="alert('citizen-feature-custom-font-size-name')"> (script tags don't work here due to the way the HTML is inserted)
  2. Open the preferences menu image
Show details on source website

To clipboard 

{
  "affected": [
    {
      "package": {
        "ecosystem": "Packagist",
        "name": "starcitizentools/citizen-skin"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "2.13.0"
            },
            {
              "fixed": "3.3.1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2025-49577"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-79"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2025-06-13T14:08:12Z",
    "nvd_published_at": "2025-06-12T19:15:20Z",
    "severity": "MODERATE"
  },
  "details": "### Summary\nVarious preferences messages are inserted into raw HTML, allowing anybody who can edit those messages to insert arbitrary HTML into the DOM.\n\n### Details\nThe `innerHtml` of the label div is set to the `textContent` of the label, essentially unsanitizing the system messages:\nhttps://github.com/StarCitizenTools/mediawiki-skins-Citizen/blob/407052e7069bdeae927d6f1a2a1c9a45b473bf9a/resources/skins.citizen.preferences/addPortlet.polyfill.js#L18\n\n\n### PoC\n1. Edit `citizen-feature-custom-font-size-name` (or any other message displayed in a heading in the preferences menu) to `\u003cimg src=\"\" onerror=\"alert(\u0027citizen-feature-custom-font-size-name\u0027)\"\u003e` (script tags don\u0027t work here due to the way the HTML is inserted)\n2. Open the preferences menu\n![image](https://github.com/user-attachments/assets/b75f100d-09cc-443c-b635-e9d6ab48d133)",
  "id": "GHSA-jwr7-992g-68mh",
  "modified": "2025-06-13T14:08:12Z",
  "published": "2025-06-13T14:08:12Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/StarCitizenTools/mediawiki-skins-Citizen/security/advisories/GHSA-jwr7-992g-68mh"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-49577"
    },
    {
      "type": "WEB",
      "url": "https://github.com/StarCitizenTools/mediawiki-skins-Citizen/commit/93c36ac778397e0e7c46cf7adb1e5d848265f1bd"
    },
    {
      "type": "WEB",
      "url": "https://github.com/StarCitizenTools/mediawiki-skins-Citizen/commit/a741639085d70c22a9f49890542a142a223bf981"
    },
    {
      "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 preference menu heading messages"
}


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