{"id":"CVE-2025-53502","aliases":["EUVD-2025-19888","GHSA-h639-qx2x-fm8f"],"status":"published","title":"HTML injection in FeaturedFeeds","description":"Improper Input Validation vulnerability in Wikimedia Foundation Mediawiki - FeaturedFeeds Extension allows Cross-Site Scripting (XSS).This issue affects Mediawiki - FeaturedFeeds Extension: 1.39.X, 1.42.X, 1.43.X.","severity":{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N","level":"medium","assessor":"adp","from":"cve"},"epss":{"day":"2026-11-10","score":0.00235,"percentile":0.14566,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-20"],"published":"2025-07-03T16:11:07Z","modified":"2026-06-17T09:38:20Z","products":[{"vendor":"wikimedia foundation","product":"mediawiki - featuredfeeds extension"}],"references":[{"url":"https://phabricator.wikimedia.org/T392279"},{"url":"https://gerrit.wikimedia.org/r/c/mediawiki/extensions/FeaturedFeeds/+/1149742"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2025-53502"},{"url":"https://github.com/advisories/GHSA-h639-qx2x-fm8f"}],"sources":{"cve":[{"id":"CVE-2025-53502","title":"HTML injection in FeaturedFeeds","description":"Improper Input Validation vulnerability in Wikimedia Foundation Mediawiki - FeaturedFeeds Extension allows Cross-Site Scripting (XSS).This issue affects Mediawiki - FeaturedFeeds Extension: 1.39.X, 1.42.X, 1.43.X.","status":"published","published":"2025-07-03T16:11:07.054Z","modified":"2025-07-10T23:37:56.408Z","cvss":[{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N","level":"medium","assessor":"adp"}],"cwes":["CWE-20"],"updated_at":"2026-11-02T14:32:48.853452Z"}],"euvd":[{"id":"EUVD-2025-19888","description":"Improper Input Validation vulnerability in Wikimedia Foundation Mediawiki - FeaturedFeeds Extension allows Cross-Site Scripting (XSS).This issue affects Mediawiki - FeaturedFeeds Extension: 1.39.X, 1.42.X, 1.43.X.","status":"published","published":"2025-07-03T16:11:07Z","modified":"2025-07-10T23:37:56Z","cvss":[{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N","level":"medium"}],"updated_at":"2026-11-02T20:32:09.102762Z"}],"ghsa":[{"id":"GHSA-h639-qx2x-fm8f","title":"Improper Input Validation vulnerability in Wikimedia Foundation Mediawiki - FeaturedFeeds...","description":"Improper Input Validation vulnerability in Wikimedia Foundation Mediawiki - FeaturedFeeds Extension allows Cross-Site Scripting (XSS).This issue affects Mediawiki - FeaturedFeeds Extension: 1.39.X, 1.42.X, 1.43.X.","status":"published","published":"2025-07-03T18:31:28Z","modified":"2025-07-03T18:31:28Z","cvss":[{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N","level":"medium"}],"cwes":["CWE-20"],"updated_at":"2026-11-02T15:02:53.892162Z"}],"nvd":[{"id":"CVE-2025-53502","description":"Improper Input Validation vulnerability in Wikimedia Foundation Mediawiki - FeaturedFeeds Extension allows Cross-Site Scripting (XSS).This issue affects Mediawiki - FeaturedFeeds Extension: 1.39.X, 1.42.X, 1.43.X.","status":"published","published":"2025-07-03T17:15:40.25Z","modified":"2026-06-17T09:38:20.287Z","cvss":[{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N","level":"medium","assessor":"secondary"}],"cwes":["CWE-20"],"updated_at":"2026-11-02T14:11:15.754475Z"}]}}