{"id":"CVE-2026-96872","state":"PUBLISHED","title":"WikiLambda public function execution bypasses the unsaved-code permission through nested Z825 compositions","description":"Improper handling of insufficient permissions or privileges vulnerability in The Wikimedia Foundation Mediawiki - WikiLambda Extension on Linux, MacOS, and Windows allows Accessing Functionality Not Properly Constrained by ACLs.\n\nThis issue affects Mediawiki - WikiLambda Extension: before 1.47.0.","publishedAt":"2026-09-23T18:50:13.056Z","updatedAt":"2026-09-23T19:35:06.350Z","severity":{"score":2.9,"label":"Low","version":"4.0","vector":"CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:L/SI:N/SA:N/E:P/AU:Y","source":"wikimedia-foundation"},"assigner":"wikimedia-foundation","products":["The Wikimedia Foundation Mediawiki - WikiLambda Extension"],"affected":[{"vendor":"The Wikimedia Foundation","product":"Mediawiki - WikiLambda Extension","defaultStatus":"unaffected","versions":[{"version":"0","status":"affected","lessThan":"1.47.0","versionType":"semver"}],"platforms":["Linux","MacOS","Windows"],"repo":"https://gerrit.wikimedia.org/g/mediawiki/extensions/WikiLambda"}],"references":["https://phabricator.wikimedia.org/T435085","https://gerrit.wikimedia.org/r/c/mediawiki/extensions/WikiLambda/+/1326392"],"weaknesses":["CWE-280"],"ingestedAt":"2026-10-29T20:13:43.249Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/96xxx/CVE-2026-96872.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-96872","state":"PUBLISHED","datePublished":"2026-09-23T18:50:13.056Z","dateUpdated":"2026-09-23T19:35:06.350Z","assignerShortName":"wikimedia-foundation","assignerOrgId":"c4f26cc8-17ff-4c99-b5e2-38fc1793eacc","dateReserved":"2026-09-23T18:13:31.629Z"},"containers":{"cna":{"title":"WikiLambda public function execution bypasses the unsaved-code permission through nested Z825 compositions","descriptions":[{"lang":"en","value":"Improper handling of insufficient permissions or privileges vulnerability in The Wikimedia Foundation Mediawiki - WikiLambda Extension on Linux, MacOS, and Windows allows Accessing Functionality Not Properly Constrained by ACLs.\n\nThis issue affects Mediawiki - WikiLambda Extension: before 1.47.0."}],"affected":[{"vendor":"The Wikimedia Foundation","product":"Mediawiki - WikiLambda Extension","defaultStatus":"unaffected","versions":[{"version":"0","status":"affected","lessThan":"1.47.0","versionType":"semver"}],"platforms":["Linux","MacOS","Windows"],"repo":"https://gerrit.wikimedia.org/g/mediawiki/extensions/WikiLambda"}],"references":[{"url":"https://phabricator.wikimedia.org/T435085"},{"url":"https://gerrit.wikimedia.org/r/c/mediawiki/extensions/WikiLambda/+/1326392"}],"metrics":[{"format":"CVSS","scenarios":[{"lang":"en","value":"GENERAL"}],"cvssV4_0":{"attackVector":"NETWORK","attackComplexity":"HIGH","attackRequirements":"NONE","privilegesRequired":"NONE","userInteraction":"NONE","vulnConfidentialityImpact":"LOW","subConfidentialityImpact":"LOW","vulnIntegrityImpact":"NONE","subIntegrityImpact":"NONE","vulnAvailabilityImpact":"NONE","subAvailabilityImpact":"NONE","exploitMaturity":"PROOF_OF_CONCEPT","Safety":"NOT_DEFINED","Automatable":"YES","Recovery":"NOT_DEFINED","valueDensity":"NOT_DEFINED","vulnerabilityResponseEffort":"NOT_DEFINED","providerUrgency":"NOT_DEFINED","version":"4.0","baseSeverity":"LOW","baseScore":2.9,"vectorString":"CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:L/SI:N/SA:N/E:P/AU:Y"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-280","lang":"en","description":"CWE-280 Improper handling of insufficient permissions or privileges","type":"CWE"}]}],"providerMetadata":{"shortName":"wikimedia-foundation","orgId":"c4f26cc8-17ff-4c99-b5e2-38fc1793eacc","dateUpdated":"2026-09-23T18:50:13.056Z"},"datePublic":"2026-09-23T17:15:00.000Z","impacts":[{"capecId":"CAPEC-1","descriptions":[{"lang":"en","value":"CAPEC-1 Accessing Functionality Not Properly Constrained by ACLs"}]}],"credits":[{"lang":"en","value":"bombobombone","type":"finder"}],"source":{"discovery":"UNKNOWN"},"x_generator":{"engine":"Vulnogram 1.0.5"}},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-09-23T19:34:57.995525Z","id":"CVE-2026-96872","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-09-23T19:35:06.350Z"}}]}}}