{"id":"GHSA-rj9p-8jxj-2ch4","summary":"MediaWiki Cross-site Scripting (XSS) vulnerability","details":"An issue was discovered in MediaWiki 1.34.x before 1.34.3. On Special:Contributions, the NS filter uses unescaped messages as keys in the option key for an HTMLForm specifier. This is vulnerable to a mild XSS if one of those messages is changed to include raw HTML.","aliases":["BIT-mediawiki-2020-25812","CVE-2020-25812"],"modified":"2024-05-17T22:11:44.623297Z","published":"2022-05-24T17:29:41Z","database_specific":{"github_reviewed":true,"github_reviewed_at":"2024-05-17T21:56:18Z","nvd_published_at":"2020-09-27T21:15:00Z","cwe_ids":["CWE-79"],"severity":"MODERATE"},"references":[{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2020-25812"},{"type":"WEB","url":"https://gerrit.wikimedia.org/g/mediawiki/core/+/ad4a3ba45fb955aa8c0eb3c83809b16b40a498b9/includes/specials/SpecialContributions.php#592"},{"type":"WEB","url":"https://github.com/FriendsOfPHP/security-advisories/blob/master/mediawiki/core/CVE-2020-25812.yaml"},{"type":"PACKAGE","url":"https://github.com/wikimedia/mediawiki"},{"type":"WEB","url":"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/RTTPZ7XMDS66I442OLLHXBDNP2LCBJU6"},{"type":"WEB","url":"https://lists.wikimedia.org/pipermail/mediawiki-l/2020-September/048480.html"},{"type":"WEB","url":"https://lists.wikimedia.org/pipermail/mediawiki-l/2020-September/048488.html"},{"type":"WEB","url":"https://phabricator.wikimedia.org/T255918"}],"affected":[{"package":{"name":"mediawiki/core","ecosystem":"Packagist","purl":"pkg:composer/mediawiki/core"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"1.34.0"},{"fixed":"1.34.3"}]}],"versions":["1.34.0","1.34.1","1.34.2"],"database_specific":{"source":"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2022/05/GHSA-rj9p-8jxj-2ch4/GHSA-rj9p-8jxj-2ch4.json"}},{"package":{"name":"mediawiki/core","ecosystem":"Packagist","purl":"pkg:composer/mediawiki/core"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"1.35.0-rc.0"},{"fixed":"1.35.0"}]}],"versions":["1.35.0-rc.0","1.35.0-rc.1","1.35.0-rc.2","1.35.0-rc.3"],"database_specific":{"source":"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2022/05/GHSA-rj9p-8jxj-2ch4/GHSA-rj9p-8jxj-2ch4.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N"}]}