{"id":"CVE-2026-103441","aliases":["EUVD-2026-90073","GHSA-5j2p-pvv3-qxhp"],"status":"published","title":"Unauthenticated arbitrary file deletion through Wikibase serialized entity parsing","description":"Deserialization of untrusted data vulnerability in The Wikimedia Foundation MediaWiki Wikibase extension allows Leverage Executable Code in Non-Executable Files.\n\nThis issue affects MediaWiki Wikibase extension: 1.46, 1.45, and 1.43.","severity":{"version":"4.0","score":7.2,"vector":"CVSS:4.0/AV:N/AC:H/AT:P/PR:L/UI:A/VC:H/VI:H/VA:L/SC:H/SI:H/SA:L/E:P/S:N/AU:Y/R:I/V:C/RE:M/U:Red","level":"high","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-11","score":0.00282,"percentile":0.20969,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":true,"fix_available":false},"cwes":["CWE-502"],"published":"2026-09-30T15:59:42Z","modified":"2026-11-09T16:29:56Z","exploits":[{"source":"pocgithub","id":"BomboBombone/CVE-2026-103441","title":"BomboBombone/CVE-2026-103441","date":"2026-09-30","url":"https://github.com/BomboBombone/CVE-2026-103441"}],"products":[{"vendor":"the wikimedia foundation","product":"mediawiki wikibase extension"}],"references":[{"url":"https://phabricator.wikimedia.org/T435210"},{"url":"https://gerrit.wikimedia.org/r/q/Id35bf747e48370e474d9b9444bd7520b24836e8d"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-103441"},{"url":"https://github.com/advisories/GHSA-5j2p-pvv3-qxhp"}],"sources":{"cve":[{"id":"CVE-2026-103441","title":"Unauthenticated arbitrary file deletion through Wikibase serialized entity parsing","description":"Deserialization of untrusted data vulnerability in The Wikimedia Foundation MediaWiki Wikibase extension allows Leverage Executable Code in Non-Executable Files.\n\nThis issue affects MediaWiki Wikibase extension: 1.46, 1.45, and 1.43.","status":"published","published":"2026-09-30T15:59:42.361Z","modified":"2026-11-09T16:29:56.055Z","cvss":[{"version":"4.0","score":7.2,"vector":"CVSS:4.0/AV:N/AC:H/AT:P/PR:L/UI:A/VC:H/VI:H/VA:L/SC:H/SI:H/SA:L/E:P/S:N/AU:Y/R:I/V:C/RE:M/U:Red","level":"high","assessor":"cna"}],"cwes":["CWE-502"],"updated_at":"2026-11-09T17:34:05.130069Z"}],"euvd":[{"id":"EUVD-2026-90073","description":"Deserialization of untrusted data vulnerability in The Wikimedia Foundation MediaWiki Wikibase extension allows Leverage Executable Code in Non-Executable Files.\n\nThis issue affects MediaWiki Wikibase extension: 1.46, 1.45, and 1.43.","status":"published","published":"2026-09-30T15:59:42Z","modified":"2026-11-09T16:29:56Z","cvss":[{"version":"4.0","score":7.2,"vector":"CVSS:4.0/AV:N/AC:H/AT:P/PR:L/UI:A/VC:H/VI:H/VA:L/SC:H/SI:H/SA:L/E:P/S:N/AU:Y/R:I/V:C/RE:M/U:Red","level":"high"}],"updated_at":"2026-11-09T17:17:30.806151Z"}],"ghsa":[{"id":"GHSA-5j2p-pvv3-qxhp","title":"Deserialization of untrusted data vulnerability in The Wikimedia Foundation MediaWiki Wikibase...","description":"Deserialization of untrusted data vulnerability in The Wikimedia Foundation MediaWiki Wikibase extension allows Leverage Executable Code in Non-Executable Files.\n\nThis issue affects MediaWiki Wikibase extension: 1.46, 1.45, and 1.43.","status":"published","published":"2026-09-30T18:33:34Z","modified":"2026-09-30T18:33:34Z","cvss":[{"version":"4.0","score":7.2,"vector":"CVSS:4.0/AV:N/AC:H/AT:P/PR:L/UI:A/VC:H/VI:H/VA:L/SC:H/SI:H/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:I/V:C/RE:M/U:Red","level":"high"}],"cwes":["CWE-502"],"updated_at":"2026-11-02T15:12:37.551329Z"}],"nvd":[{"id":"CVE-2026-103441","description":"Deserialization of untrusted data vulnerability in The Wikimedia Foundation MediaWiki Wikibase extension allows Leverage Executable Code in Non-Executable Files.\n\nThis issue affects MediaWiki Wikibase extension: 1.46, 1.45, and 1.43.","status":"published","published":"2026-09-30T16:17:09.86Z","modified":"2026-11-09T17:17:06.47Z","cvss":[{"version":"4.0","score":7.2,"vector":"CVSS:4.0/AV:N/AC:H/AT:P/PR:L/UI:A/VC:H/VI:H/VA:L/SC:H/SI:H/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:I/V:C/RE:M/U:Red","level":"high","assessor":"secondary"}],"cwes":["CWE-502"],"updated_at":"2026-11-09T20:15:31.965294Z"}]}}