{"id":"CVE-2024-47845","aliases":["EUVD-2024-42707","GHSA-rxh5-jm9f-fmwj"],"status":"published","title":"CSS sanitizer used incorrectly, and is easily bypassed","description":"Improper Encoding or Escaping of Output vulnerability in The Wikimedia Foundation Mediawiki - CSS Extension allows Code Injection.This issue affects Mediawiki - CSS Extension: from 1.39.X before 1.39.9, from 1.41.X before 1.41.3, from 1.42.X before 1.42.2.","severity":{"version":"4.0","score":6.9,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:N/SC:L/SI:L/SA:N","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-09","score":0.00407,"percentile":0.35283,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-116"],"published":"2024-10-05T00:09:09Z","modified":"2026-06-17T07:57:51Z","products":[{"vendor":"the wikimedia foundation","product":"mediawiki - css extension"},{"vendor":"wikimedia","product":"mediawiki-extensions-css"},{"vendor":"wikimedia","product":"wikimedia-extensions-css"},{"vendor":"wikimedia foundation","product":"mediawiki - css extension"}],"references":[{"url":"https://phabricator.wikimedia.org/T368628","tags":["Issue Tracking","Vendor Advisory"]},{"url":"https://phabricator.wikimedia.org/T368594","tags":["Exploit","Issue Tracking","Vendor Advisory"]},{"url":"https://gerrit.wikimedia.org/r/q/I6f38f4a8fc1dcd690ab27b8f18ce6ca903bacc53","tags":["Patch"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2024-47845"},{"url":"https://github.com/advisories/GHSA-rxh5-jm9f-fmwj"}],"sources":{"cve":[{"id":"CVE-2024-47845","title":"CSS sanitizer used incorrectly, and is easily bypassed","description":"Improper Encoding or Escaping of Output vulnerability in The Wikimedia Foundation Mediawiki - CSS Extension allows Code Injection.This issue affects Mediawiki - CSS Extension: from 1.39.X before 1.39.9, from 1.41.X before 1.41.3, from 1.42.X before 1.42.2.","status":"published","published":"2024-10-05T00:09:09.355Z","modified":"2024-10-07T17:39:08.435Z","cvss":[{"version":"4.0","score":6.9,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:N/SC:L/SI:L/SA:N","level":"medium","assessor":"cna"}],"cwes":["CWE-116"],"updated_at":"2026-11-02T14:33:57.638551Z"}],"euvd":[{"id":"EUVD-2024-42707","description":"Improper Encoding or Escaping of Output vulnerability in The Wikimedia Foundation Mediawiki - CSS Extension allows Code Injection.This issue affects Mediawiki - CSS Extension: from 1.39.X before 1.39.9, from 1.41.X before 1.41.3, from 1.42.X before 1.42.2.","status":"published","published":"2024-10-05T00:09:09Z","modified":"2024-10-07T17:39:08Z","cvss":[{"version":"4.0","score":6.9,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:N/SC:L/SI:L/SA:N","level":"medium"}],"updated_at":"2026-11-03T00:27:46.330731Z"}],"ghsa":[{"id":"GHSA-rxh5-jm9f-fmwj","title":"Improper Encoding or Escaping of Output vulnerability in The Wikimedia Foundation Mediawiki - CSS...","description":"Improper Encoding or Escaping of Output vulnerability in The Wikimedia Foundation Mediawiki - CSS Extension allows Code Injection.This issue affects Mediawiki - CSS Extension: from 1.39.X before 1.39.9, from 1.41.X before 1.41.3, from 1.42.X before 1.42.2.","status":"published","published":"2024-10-05T03:30:36Z","modified":"2024-10-23T15:32:04Z","cvss":[{"version":"4.0","score":6.9,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:N/SC:L/SI:L/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:X/AU:X/R:X/V:X/RE:X/U:X","level":"medium"},{"version":"3.1","score":8.2,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:L/A:N","level":"high"}],"cwes":["CWE-116"],"updated_at":"2026-11-02T14:58:34.787705Z"}],"nvd":[{"id":"CVE-2024-47845","description":"Improper Encoding or Escaping of Output vulnerability in The Wikimedia Foundation Mediawiki - CSS Extension allows Code Injection.This issue affects Mediawiki - CSS Extension: from 1.39.X before 1.39.9, from 1.41.X before 1.41.3, from 1.42.X before 1.42.2.","status":"published","published":"2024-10-05T01:15:12.237Z","modified":"2026-06-17T07:57:51.003Z","cvss":[{"version":"4.0","score":6.9,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:N/SC:L/SI:L/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:X/AU:X/R:X/V:X/RE:X/U:X","level":"medium","assessor":"secondary"},{"version":"3.1","score":8.2,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:L/A:N","level":"high","assessor":"primary"}],"cwes":["CWE-116"],"updated_at":"2026-11-02T14:10:30.673028Z"}]}}