{"id":"CVE-2013-4567","aliases":["DEBIAN-CVE-2013-4567","DSA-2891-1","EUVD-2013-4425","GHSA-r328-753q-m689","MGASA-2013-0368","UBUNTU-CVE-2013-4567"],"status":"published","title":"Incomplete blacklist vulnerability in Sanitizer::checkCss in MediaWiki before 1.19.9, 1.20.x...","description":"Incomplete blacklist vulnerability in Sanitizer::checkCss in MediaWiki before 1.19.9, 1.20.x before 1.20.8, and 1.21.x before 1.21.3 allows remote attackers to conduct cross-site scripting (XSS) attacks via a \\b (backspace) character in CSS.","severity":{"version":"2.0","score":4.3,"vector":"AV:N/AC:M/Au:N/C:N/I:P/A:N","level":"medium","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-08","score":0.01349,"percentile":0.71663,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"published":"2013-12-12T22:21:01Z","modified":"2026-09-01T20:03:18Z","fixes":[{"ecosystem":"Debian:12","package":"mediawiki","fixed_in":["1:1.19.8+dfsg-2.2"],"sources":["osv"]},{"ecosystem":"Debian:13","package":"mediawiki","fixed_in":["1:1.19.8+dfsg-2.2"],"sources":["osv"]},{"ecosystem":"Debian:14","package":"mediawiki","fixed_in":["1:1.19.8+dfsg-2.2"],"sources":["osv"]}],"affected":[{"source":"osv","ecosystem":"Debian:12","package":"mediawiki","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1:1.19.8+dfsg-2.2"}]}]},{"source":"osv","ecosystem":"Debian:13","package":"mediawiki","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1:1.19.8+dfsg-2.2"}]}]},{"source":"osv","ecosystem":"Debian:14","package":"mediawiki","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1:1.19.8+dfsg-2.2"}]}]},{"source":"osv","ecosystem":"Debian:7","package":"mediawiki","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1:1.19.14+dfsg-0+deb7u1"}]}],"versions":["1:1.19.10+dfsg-1","1:1.19.11+dfsg-0+deb7u1","1:1.19.11+dfsg-1","1:1.19.12+dfsg-1","1:1.19.13+dfsg-1","1:1.19.5-1","1:1.19.5-1+deb7u1","1:1.19.6-1","1:1.19.7+dfsg-1","1:1.19.7+dfsg-1.1","1:1.19.8+dfsg-1","1:1.19.8+dfsg-2","1:1.19.8+dfsg-2.1","1:1.19.8+dfsg-2.2","1:1.19.9+dfsg-1","1:1.19.9+dfsg-2"],"bundled":11},{"source":"osv","ecosystem":"Debian:7","package":"mediawiki-extensions","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.5~deb7u1"}]}],"versions":["2.11","3.0","3.1","3.2","3.3","3.4","3~exp1","3~exp2","3~exp3"],"bundled":11},{"source":"osv","ecosystem":"Mageia:3","package":"mediawiki","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.20.8-1.mga3"}]}],"bundled":3}],"products":[{"vendor":"mediawiki","product":"mediawiki"}],"references":[{"url":"http://www.securityfocus.com/bid/63760","tags":["vdb-entry","x_refsource_BID","x_transferred","web"]},{"url":"http://secunia.com/advisories/57472","tags":["third-party-advisory","x_refsource_SECUNIA","x_transferred","advisory"]},{"url":"http://www.debian.org/security/2014/dsa-2891","tags":["vendor-advisory","x_refsource_DEBIAN","x_transferred","advisory"]},{"url":"http://lists.wikimedia.org/pipermail/mediawiki-announce/2013-November/000135.html","tags":["mailing-list","x_refsource_MLIST","x_transferred","web","report"]},{"url":"http://lists.fedoraproject.org/pipermail/package-announce/2013-December/123011.html","tags":["vendor-advisory","x_refsource_FEDORA","x_transferred","web","report"]},{"url":"http://lists.fedoraproject.org/pipermail/package-announce/2013-December/122998.html","tags":["vendor-advisory","x_refsource_FEDORA","x_transferred","web","report"]},{"url":"https://bugzilla.wikimedia.org/show_bug.cgi?id=55332","tags":["x_refsource_CONFIRM","x_transferred","report"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2013-4567"},{"url":"https://github.com/advisories/GHSA-r328-753q-m689"},{"url":"https://security-tracker.debian.org/tracker/CVE-2013-4567","tags":["advisory"]},{"url":"https://advisories.mageia.org/MGASA-2013-0368.html","tags":["advisory"]},{"url":"https://lists.fedoraproject.org/pipermail/package-announce/2013-December/123011.html","tags":["web"]},{"url":"https://bugs.mageia.org/show_bug.cgi?id=11854","tags":["report"]},{"url":"https://ubuntu.com/security/CVE-2013-4567","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2013-4567","tags":["report"]}],"sources":{"cve":[{"id":"CVE-2013-4567","description":"Incomplete blacklist vulnerability in Sanitizer::checkCss in MediaWiki before 1.19.9, 1.20.x before 1.20.8, and 1.21.x before 1.21.3 allows remote attackers to conduct cross-site scripting (XSS) attacks via a \\b (backspace) character in CSS.","status":"published","published":"2013-12-13T18:00:00Z","modified":"2024-08-06T16:45:14.879Z","updated_at":"2026-11-02T14:34:57.869657Z"}],"euvd":[{"id":"EUVD-2013-4425","description":"Incomplete blacklist vulnerability in Sanitizer::checkCss in MediaWiki before 1.19.9, 1.20.x before 1.20.8, and 1.21.x before 1.21.3 allows remote attackers to conduct cross-site scripting (XSS) attacks via a \\b (backspace) character in CSS.","status":"published","published":"2013-12-13T18:00:00Z","modified":"2024-08-06T16:45:14Z","updated_at":"2026-11-03T01:56:31.667445Z"}],"ghsa":[{"id":"GHSA-r328-753q-m689","title":"Incomplete blacklist vulnerability in Sanitizer::checkCss in MediaWiki before 1.19.9, 1.20.x...","description":"Incomplete blacklist vulnerability in Sanitizer::checkCss in MediaWiki before 1.19.9, 1.20.x before 1.20.8, and 1.21.x before 1.21.3 allows remote attackers to conduct cross-site scripting (XSS) attacks via a \\b (backspace) character in CSS.","status":"published","published":"2022-05-17T03:13:00Z","modified":"2023-01-27T05:07:40Z","updated_at":"2026-11-02T14:43:09.795502Z"}],"nvd":[{"id":"CVE-2013-4567","description":"Incomplete blacklist vulnerability in Sanitizer::checkCss in MediaWiki before 1.19.9, 1.20.x before 1.20.8, and 1.21.x before 1.21.3 allows remote attackers to conduct cross-site scripting (XSS) attacks via a \\b (backspace) character in CSS.","status":"published","published":"2013-12-13T18:07:54.063Z","modified":"2026-06-16T23:57:27.99Z","cvss":[{"version":"2.0","score":4.3,"vector":"AV:N/AC:M/Au:N/C:N/I:P/A:N","level":"medium","assessor":"primary"}],"updated_at":"2026-11-02T14:02:44.596064Z"}],"osv":[{"id":"CVE-2013-4567","description":"Incomplete blacklist vulnerability in Sanitizer::checkCss in MediaWiki before 1.19.9, 1.20.x before 1.20.8, and 1.21.x before 1.21.3 allows remote attackers to conduct cross-site scripting (XSS) attacks via a \\b (backspace) character in CSS.","status":"published","published":"2013-12-13T18:07:54Z","modified":"2026-04-16T06:25:38.767810454Z","updated_at":"2026-11-02T15:43:59.09154Z"},{"id":"DEBIAN-CVE-2013-4567","description":"Incomplete blacklist vulnerability in Sanitizer::checkCss in MediaWiki before 1.19.9, 1.20.x before 1.20.8, and 1.21.x before 1.21.3 allows remote attackers to conduct cross-site scripting (XSS) attacks via a \\b (backspace) character in CSS.","status":"published","published":"2013-12-13T18:07:54.063Z","modified":"2026-09-01T20:03:18.414388007Z","updated_at":"2026-11-02T15:45:25.819707Z"},{"id":"DSA-2891-1","title":"mediawiki - security update","status":"published","published":"2014-03-30T00:00:00Z","modified":"2026-03-09T01:19:00.25627Z","updated_at":"2026-11-02T15:46:15.843838Z"},{"id":"MGASA-2013-0368","title":"Updated mediawiki packages fix security vulnerabilities","description":"Updated mediawiki packages fix security vulnerabilities:\n\nKevin Israel (Wikipedia user PleaseStand) identified and reported two\nvectors for injecting Javascript in CSS that bypassed MediaWiki's blacklist\n(CVE-2013-4567, CVE-2013-4568).\n\nInternal review while debugging a site issue discovered that MediaWiki\nand the CentralNotice extension were incorrectly setting cache headers when\na user was autocreated, causing the user's session cookies to be cached,\nand returned to other users (CVE-2013-4572).\n","status":"published","published":"2013-12-12T22:21:01Z","modified":"2026-04-16T06:23:12.207815898Z","updated_at":"2026-11-02T15:49:39.121227Z"},{"id":"UBUNTU-CVE-2013-4567","description":"Incomplete blacklist vulnerability in Sanitizer::checkCss in MediaWiki before 1.19.9, 1.20.x before 1.20.8, and 1.21.x before 1.21.3 allows remote attackers to conduct cross-site scripting (XSS) attacks via a \\b (backspace) character in CSS.","status":"withdrawn","published":"2013-12-13T18:07:00Z","modified":"2025-07-16T07:17:09.534775Z","updated_at":"2026-11-02T15:54:07.421078Z"}]}}