{"id":"CVE-2026-103446","title":"Authorization bypass through User-Controlled key vulnerability in The Wikimedia Foundation MediaWiki WikiLambda extension allows Authentication Bypass.\n\nThis issue affects MediaWiki WikiLambda extension: 1.46.","summary":"Authorization bypass through User-Controlled key vulnerability in The Wikimedia Foundation MediaWiki WikiLambda extension allows Authentication Bypass.\n\nThis issue affects MediaWiki WikiLambda extension: 1.46.","severity":"high","cvss":7.4,"cvssVector":"CVSS:4.0/AV:N/AC:H/AT:P/PR:L/UI:P/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:P/S:N/AU:Y/R:U/V:C/RE:M/U:Amber","cwe":["CWE-639"],"vendor":"The Wikimedia Foundation","product":"MediaWiki WikiLambda extension","affected":["mediawiki_wikilambda_extension 1.46"],"published":"2026-09-30","updated":"2026-10-06","sourceUpdated":"2026-10-06T19:17:39.550","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-103446","references":[{"url":"https://gerrit.wikimedia.org/r/q/If2c05b109672fc65f63372f86c768859dc6639fd","label":"c4f26cc8-17ff-4c99-b5e2-38fc1793eacc"},{"url":"https://phabricator.wikimedia.org/T435086","label":"c4f26cc8-17ff-4c99-b5e2-38fc1793eacc"}],"tags":["nvd","exploit-available","cve.org"],"epss":0.00328,"epssPercentile":0.25786,"exploits":{"github":1,"githubRepos":["https://github.com/BomboBombone/CVE-2026-103446"],"checkedAt":"2026-10-27T16:53:49.726Z"},"exploitAvailable":true,"ssvc":{"exploitation":"none","automatable":"no","technicalImpact":"total","timestamp":"2026-10-06T18:25:03.783560Z"},"cvssSource":"cna","ingestedAt":"2026-09-30T18:17:24.571Z","slug":"CVE-2026-103446","body":"## Overview\n\nAuthorization bypass through User-Controlled key vulnerability in The Wikimedia Foundation MediaWiki WikiLambda extension allows Authentication Bypass.\n\nThis issue affects MediaWiki WikiLambda extension: 1.46.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"midnight","depthScore":53,"depthScoreParts":{"impact":40.7,"likelihood":0.1,"exploitation":12,"ransomware":0},"changes":[{"seq":214541,"id":"CVE-2026-103446","ts":1790874158323,"field":"exploit_available","old":"false","new":"true"}]}