{ "dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": { "cveId": "CVE-2026-96872", "assignerOrgId": "c4f26cc8-17ff-4c99-b5e2-38fc1793eacc", "state": "PUBLISHED", "assignerShortName": "wikimedia-foundation", "dateReserved": "2026-09-23T18:13:31.629Z", "datePublished": "2026-09-23T18:50:13.056Z", "dateUpdated": "2026-09-23T19:35:06.350Z" }, "containers": { "cna": { "providerMetadata": { "orgId": "c4f26cc8-17ff-4c99-b5e2-38fc1793eacc", "shortName": "wikimedia-foundation", "dateUpdated": "2026-09-23T18:50:13.056Z" }, "title": "WikiLambda public function execution bypasses the unsaved-code permission through nested Z825 compositions", "datePublic": "2026-09-23T17:15:00.000Z", "problemTypes": [ { "descriptions": [ { "lang": "en", "cweId": "CWE-280", "description": "CWE-280 Improper handling of insufficient permissions or privileges", "type": "CWE" } ] } ], "impacts": [ { "capecId": "CAPEC-1", "descriptions": [ { "lang": "en", "value": "CAPEC-1 Accessing Functionality Not Properly Constrained by ACLs" } ] } ], "affected": [ { "vendor": "The Wikimedia Foundation", "product": "Mediawiki - WikiLambda Extension", "platforms": [ "Linux", "MacOS", "Windows" ], "repo": "https://gerrit.wikimedia.org/g/mediawiki/extensions/WikiLambda", "versions": [ { "status": "affected", "version": "0", "lessThan": "1.47.0", "versionType": "semver" } ], "defaultStatus": "unaffected" } ], "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.", "supportingMedia": [ { "type": "text/html", "base64": false, "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.

This issue affects Mediawiki - WikiLambda Extension: before 1.47.0.

" } ] } ], "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" } } ], "credits": [ { "lang": "en", "value": "bombobombone", "type": "finder" } ], "source": { "discovery": "UNKNOWN" }, "x_generator": { "engine": "Vulnogram 1.0.5" } }, "adp": [ { "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" } } } ], "title": "CISA ADP Vulnrichment", "providerMetadata": { "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-09-23T19:35:06.350Z" } } ] } }