{"id":"CVE-2025-62656","aliases":["EUVD-2025-35105","GHSA-m85w-39m7-cghw","UBUNTU-CVE-2025-62656"],"status":"published","title":"GlobalBlocking Special:GlobalBlockList vulnerable to message key stored XSS","description":"Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting') vulnerability in The Wikimedia Foundation MediaWiki GlobalBlocking extension allows Stored XSS.This issue affects MediaWiki GlobalBlocking extension: 1.43, 1.44.","severity":{"version":"4.0","score":5.8,"vector":"CVSS:4.0/AV:N/AC:H/AT:N/PR:H/UI:P/VC:H/VI:L/VA:N/SC:N/SI:N/SA:N/S:N/AU:N/R:U/V:C/RE:L/U:Amber","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-11","score":0.00269,"percentile":0.19279,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-79"],"published":"2025-10-20T20:15:14Z","modified":"2026-10-17T12:58:38Z","affected":[{"source":"osv","ecosystem":"Ubuntu:18.04:LTS","package":"mediawiki","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1:1.27.3-1","1:1.27.4-1","1:1.27.4-2","1:1.27.4-3"]},{"source":"osv","ecosystem":"Ubuntu:Pro:20.04:LTS","package":"mediawiki","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1:1.31.2-1ubuntu1","1:1.31.5-1","1:1.31.5-1ubuntu1","1:1.31.5-2","1:1.31.5-3","1:1.31.5-3ubuntu1","1:1.31.6-1","1:1.31.7-1","1:1.31.7-1ubuntu0.1~esm1"]},{"source":"osv","ecosystem":"Ubuntu:Pro:22.04:LTS","package":"mediawiki","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1:1.35.3-1","1:1.35.4-1","1:1.35.5-1","1:1.35.5-1ubuntu1","1:1.35.5-1ubuntu2","1:1.35.5-1ubuntu3","1:1.35.6-1","1:1.35.6-1ubuntu0.1~esm1"]},{"source":"osv","ecosystem":"Ubuntu:Pro:24.04:LTS","package":"mediawiki","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1:1.39.4-2","1:1.39.5-1","1:1.39.6-1","1:1.39.7-1","1:1.39.7-1ubuntu0.1~esm1"]},{"source":"osv","ecosystem":"Ubuntu:25.10","package":"mediawiki","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1:1.43.1+dfsg-1","1:1.43.1+dfsg-2","1:1.43.3+dfsg-1"]},{"source":"osv","ecosystem":"Ubuntu:26.10","package":"mediawiki","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1:1.43.8+dfsg-2","1:1.43.9+dfsg-1","1:1.43.9+dfsg-1ubuntu1"]},{"source":"osv","ecosystem":"Ubuntu:26.04:LTS","package":"mediawiki","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1:1.43.3+dfsg-1","1:1.43.5+dfsg-1","1:1.43.6+dfsg-2","1:1.43.8+dfsg-1","1:1.43.8+dfsg-2"]}],"products":[{"vendor":"the wikimedia foundation","product":"mediawiki globalblocking extension"}],"references":[{"url":"https://phabricator.wikimedia.org/T403291","tags":["report"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2025-62656"},{"url":"https://github.com/advisories/GHSA-m85w-39m7-cghw"},{"url":"https://ubuntu.com/security/CVE-2025-62656","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2025-62656","tags":["report"]}],"sources":{"cve":[{"id":"CVE-2025-62656","title":"GlobalBlocking Special:GlobalBlockList vulnerable to message key stored XSS","description":"Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting') vulnerability in The Wikimedia Foundation MediaWiki GlobalBlocking extension allows Stored XSS.This issue affects MediaWiki GlobalBlocking extension: 1.43, 1.44.","status":"published","published":"2025-10-20T20:15:14.947Z","modified":"2025-10-20T20:35:55.124Z","cvss":[{"version":"4.0","score":5.8,"vector":"CVSS:4.0/AV:N/AC:H/AT:N/PR:H/UI:P/VC:H/VI:L/VA:N/SC:N/SI:N/SA:N/S:N/AU:N/R:U/V:C/RE:L/U:Amber","level":"medium","assessor":"cna"}],"cwes":["CWE-79"],"updated_at":"2026-11-02T14:32:54.534202Z"}],"euvd":[{"id":"EUVD-2025-35105","description":"Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting') vulnerability in The Wikimedia Foundation MediaWiki GlobalBlocking extension allows Stored XSS.This issue affects MediaWiki GlobalBlocking extension: 1.43, 1.44.","status":"published","published":"2025-10-20T20:15:14Z","modified":"2025-10-20T20:35:55Z","cvss":[{"version":"4.0","score":5.8,"vector":"CVSS:4.0/AV:N/AC:H/AT:N/PR:H/UI:P/VC:H/VI:L/VA:N/SC:N/SI:N/SA:N/S:N/AU:N/R:U/V:C/RE:L/U:Amber","level":"medium"}],"updated_at":"2026-11-02T20:31:29.313974Z"}],"ghsa":[{"id":"GHSA-m85w-39m7-cghw","title":"Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting')...","description":"Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting') vulnerability in The Wikimedia Foundation MediaWiki GlobalBlocking extension allows Stored XSS.This issue affects MediaWiki GlobalBlocking extension: 1.43, 1.44.","status":"published","published":"2025-10-20T21:30:33Z","modified":"2025-10-20T21:30:43Z","cvss":[{"version":"4.0","score":5.8,"vector":"CVSS:4.0/AV:N/AC:H/AT:N/PR:H/UI:P/VC:H/VI:L/VA:N/SC:N/SI:N/SA:N/E:X/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:N/R:U/V:C/RE:L/U:Amber","level":"medium"}],"cwes":["CWE-79"],"updated_at":"2026-11-02T15:04:02.427458Z"}],"nvd":[{"id":"CVE-2025-62656","description":"Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting') vulnerability in The Wikimedia Foundation MediaWiki GlobalBlocking extension allows Stored XSS.This issue affects MediaWiki GlobalBlocking extension: 1.43, 1.44.","status":"published","published":"2025-10-20T21:15:38.59Z","modified":"2026-10-08T22:10:00.563Z","cvss":[{"version":"4.0","score":5.8,"vector":"CVSS:4.0/AV:N/AC:H/AT:N/PR:H/UI:P/VC:H/VI:L/VA:N/SC:N/SI:N/SA:N/E:X/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:N/R:U/V:C/RE:L/U:Amber","level":"medium","assessor":"secondary"}],"cwes":["CWE-79"],"updated_at":"2026-11-02T14:11:39.069866Z"}],"osv":[{"id":"UBUNTU-CVE-2025-62656","description":"Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting') vulnerability in The Wikimedia Foundation MediaWiki GlobalBlocking extension allows Stored XSS.This issue affects MediaWiki GlobalBlocking extension: 1.43, 1.44.","status":"published","published":"2025-10-20T21:15:00Z","modified":"2026-10-17T12:58:38.7044925Z","cvss":[{"version":"4.0","score":5.8,"vector":"CVSS:4.0/AV:N/AC:H/AT:N/PR:H/UI:P/VC:H/VI:L/VA:N/SC:N/SI:N/SA:N/S:N/AU:N/R:U/V:C/RE:L/U:Amber","level":"medium"}],"updated_at":"2026-11-02T16:55:50.817402Z"}]}}