{"id":"CVE-2023-37302","aliases":["BIT-mediawiki-2023-37302","GHSA-fmrf-p77g-vv5c"],"url":"https://o3.security/vulnerability/CVE-2023-37302","summary":"MediaWiki Cross-site Scripting vulnerability","details":"An issue was discovered in SiteLinksView.php in Wikibase in MediaWiki through 1.39.3. There is XSS via a crafted badge title attribute. This is also related to lack of escaping in wbTemplate (from resources/wikibase/templates.js) for quotes (which can be in a title attribute).","published":"2023-06-30T00:00:00Z","modified":"2026-08-12T03:51:49.501957833Z","cvss":{"score":6.1,"severity":"MEDIUM","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N"},"epss":null,"cisaKev":null,"exploitsKnown":1,"affectedPackages":[{"ecosystem":"Packagist","name":"wikibase/wikibase","fixedVersion":null}],"fix":null,"references":[{"type":"WEB","url":"https://gerrit.wikimedia.org/r/c/mediawiki/extensions/Wikibase/+/933649"},{"type":"WEB","url":"https://gerrit.wikimedia.org/r/c/mediawiki/extensions/Wikibase/+/933650"},{"type":"WEB","url":"https://phabricator.wikimedia.org/T339111"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/37xxx/CVE-2023-37302.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2023-37302"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-08-12T03:51:49.501957833Z"}}