{"id":"CVE-2025-49578","aliases":["GHSA-2v3v-3whp-953h"],"url":"https://o3.security/vulnerability/CVE-2025-49578","summary":"Citizen allows stored XSS in user registration date message","details":"### Summary\nVarious date messages returned by `Language::userDate` are inserted into raw HTML, allowing anybody who can edit those messages to insert arbitrary HTML into the DOM.\n\n### Details\nThe result of `$this->lang->userDate( $timestamp, $this->user )` returns unescaped values, but is inserted as raw HTML by Citizen:\nhttps://github.com/StarCitizenTools/mediawiki-skins-Citizen/blob/072e4365e9084e4b153eac62d3666566c06f5a49/includes/Components/CitizenComponentUserInfo.php#L55-L60\n\n### PoC\n1. Go to any page using citizen with the uselang parameter set to x-xss and while being logged in\nDepending on the registration date of the account you're logged in with, various messages can be shown. In my case, it's `november`:\n![image](https://github.com/user-attachments/assets/252a3453-99c8-4ce1-b6d6-a8485b7a9a43)\n\n\n### Impact\nThis impacts wikis where a group has the `editinterface` but not the `editsitejs` user right.","published":"2025-06-12T18:50:49.300Z","modified":"2026-08-12T03:51:12.665764884Z","cvss":{"score":6.5,"severity":"MEDIUM","vector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:N"},"epss":null,"cisaKev":null,"exploitsKnown":0,"affectedPackages":[{"ecosystem":"Packagist","name":"starcitizentools/citizen-skin","fixedVersion":"3.3.1"}],"fix":{"url":"https://github.com/StarCitizenTools/mediawiki-skins-Citizen/commit/64cb5d7ab3a6dc0381fae54b31e8fc4afadc8beb","label":"StarCitizenTools/mediawiki-skins-Citizen@64cb5d7"},"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/49xxx/CVE-2025-49578.json"},{"type":"ADVISORY","url":"https://github.com/StarCitizenTools/mediawiki-skins-Citizen/security/advisories/GHSA-2v3v-3whp-953h"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2025-49578"},{"type":"FIX","url":"https://github.com/StarCitizenTools/mediawiki-skins-Citizen/commit/64cb5d7ab3a6dc0381fae54b31e8fc4afadc8beb"},{"type":"FIX","url":"https://github.com/StarCitizenTools/mediawiki-skins-Citizen/commit/93c36ac778397e0e7c46cf7adb1e5d848265f1bd"},{"type":"PACKAGE","url":"https://github.com/StarCitizenTools/mediawiki-skins-Citizen"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-08-12T03:51:12.665764884Z"}}