{"id":"CVE-2026-103444","aliases":["EUVD-2026-90082","GHSA-wr3h-qfmx-xxrx"],"status":"published","title":"Stored XSS through system messages in WikiForum","description":"Improper neutralization of Script-Related HTML tags in a web page (basic XSS) vulnerability in The Wikimedia Foundation MediaWiki WikiForum extension allows Stored XSS.\n\nThis issue affects MediaWiki WikiForum extension: master.","severity":{"version":"4.0","score":1.1,"vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:H/UI:P/VC:L/VI:L/VA:L/SC:L/SI:L/SA:L/E:P/S:N/AU:Y/R:U/V:D/RE:M/U:Amber","level":"low","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-11","score":0.00337,"percentile":0.27414,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-80"],"published":"2026-09-30T16:23:56Z","modified":"2026-09-30T21:17:09Z","products":[{"vendor":"the wikimedia foundation","product":"mediawiki wikiforum extension"}],"references":[{"url":"https://phabricator.wikimedia.org/T414227"},{"url":"https://gerrit.wikimedia.org/r/q/I7849ef0f9c3eff48fd63e47e5b8affc3b25bb4dd"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-103444"},{"url":"https://github.com/advisories/GHSA-wr3h-qfmx-xxrx"}],"sources":{"cve":[{"id":"CVE-2026-103444","title":"Stored XSS through system messages in WikiForum","description":"Improper neutralization of Script-Related HTML tags in a web page (basic XSS) vulnerability in The Wikimedia Foundation MediaWiki WikiForum extension allows Stored XSS.\n\nThis issue affects MediaWiki WikiForum extension: master.","status":"published","published":"2026-09-30T16:23:56.008Z","modified":"2026-09-30T20:01:02.627Z","cvss":[{"version":"4.0","score":1.1,"vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:H/UI:P/VC:L/VI:L/VA:L/SC:L/SI:L/SA:L/E:P/S:N/AU:Y/R:U/V:D/RE:M/U:Amber","level":"low","assessor":"cna"}],"cwes":["CWE-80"],"updated_at":"2026-11-02T13:34:37.420074Z"}],"euvd":[{"id":"EUVD-2026-90082","description":"Improper neutralization of Script-Related HTML tags in a web page (basic XSS) vulnerability in The Wikimedia Foundation MediaWiki WikiForum extension allows Stored XSS.\n\nThis issue affects MediaWiki WikiForum extension: master.","status":"published","published":"2026-09-30T16:23:56Z","modified":"2026-09-30T20:01:02Z","cvss":[{"version":"4.0","score":1.1,"vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:H/UI:P/VC:L/VI:L/VA:L/SC:L/SI:L/SA:L/E:P/S:N/AU:Y/R:U/V:D/RE:M/U:Amber","level":"low"}],"updated_at":"2026-11-02T17:27:47.293232Z"}],"ghsa":[{"id":"GHSA-wr3h-qfmx-xxrx","title":"Improper neutralization of Script-Related HTML tags in a web page (basic XSS) vulnerability in...","description":"Improper neutralization of Script-Related HTML tags in a web page (basic XSS) vulnerability in The Wikimedia Foundation MediaWiki WikiForum extension allows Stored XSS.\n\nThis issue affects MediaWiki WikiForum extension: master.","status":"published","published":"2026-09-30T18:33:49Z","modified":"2026-09-30T18:33:55Z","cvss":[{"version":"4.0","score":1.1,"vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:H/UI:P/VC:L/VI:L/VA:L/SC:L/SI:L/SA:L/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:N/AU:Y/R:U/V:D/RE:M/U:Amber","level":"low"}],"cwes":["CWE-80"],"updated_at":"2026-11-02T15:12:38.152609Z"}],"nvd":[{"id":"CVE-2026-103444","description":"Improper neutralization of Script-Related HTML tags in a web page (basic XSS) vulnerability in The Wikimedia Foundation MediaWiki WikiForum extension allows Stored XSS.\n\nThis issue affects MediaWiki WikiForum extension: master.","status":"published","published":"2026-09-30T17:16:43.177Z","modified":"2026-09-30T21:17:09.18Z","cvss":[{"version":"4.0","score":1.1,"vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:H/UI:P/VC:L/VI:L/VA:L/SC:L/SI:L/SA:L/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:N/AU:Y/R:U/V:D/RE:M/U:Amber","level":"low","assessor":"secondary"}],"cwes":["CWE-80"],"updated_at":"2026-11-02T14:12:53.097633Z"}]}}