{ "dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": { "cveId": "CVE-2026-0669", "assignerOrgId": "c4f26cc8-17ff-4c99-b5e2-38fc1793eacc", "state": "PUBLISHED", "assignerShortName": "wikimedia-foundation", "dateReserved": "2026-01-07T16:35:00.729Z", "datePublished": "2026-01-07T17:46:57.285Z", "dateUpdated": "2026-01-07T19:21:57.287Z" }, "containers": { "cna": { "affected": [ { "defaultStatus": "unaffected", "product": "MediaWiki - CSS extension", "repo": "http://gerrit.wikimedia.org/g/mediawiki/extensions/CSS", "vendor": "Wikimedia Foundation", "versions": [ { "status": "affected", "version": "1.44" }, { "status": "affected", "version": "1.43" }, { "status": "affected", "version": "1.39" } ] } ], "credits": [ { "lang": "en", "type": "finder", "value": "Radman Siddiki" } ], "descriptions": [ { "lang": "en", "supportingMedia": [ { "base64": false, "type": "text/html", "value": "Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') vulnerability in Wikimedia Foundation MediaWiki - CSS extension allows Path Traversal.
This issue affects MediaWiki - CSS extension: 1.44, 1.43, 1.39.
" } ], "value": "Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') vulnerability in Wikimedia Foundation MediaWiki - CSS extension allows Path Traversal.This issue affects MediaWiki - CSS extension: 1.44, 1.43, 1.39." } ], "impacts": [ { "capecId": "CAPEC-126", "descriptions": [ { "lang": "en", "value": "CAPEC-126 Path Traversal" } ] } ], "problemTypes": [ { "descriptions": [ { "cweId": "CWE-22", "description": "CWE-22 Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')", "lang": "en", "type": "CWE" } ] } ], "providerMetadata": { "orgId": "c4f26cc8-17ff-4c99-b5e2-38fc1793eacc", "shortName": "wikimedia-foundation", "dateUpdated": "2026-01-07T17:46:57.285Z" }, "references": [ { "url": "https://phabricator.wikimedia.org/T401526" }, { "url": "https://gerrit.wikimedia.org/r/q/Ia15bf3f2e5a341868568492a736ac3dbf706c22e" } ], "source": { "discovery": "UNKNOWN" }, "title": "Path Traversal vulnerability in CSS extension on certain web servers", "x_generator": { "engine": "Vulnogram 0.5.0" } }, "adp": [ { "metrics": [ { "cvssV3_1": { "scope": "UNCHANGED", "version": "3.1", "baseScore": 7.5, "attackVector": "NETWORK", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "NONE", "privilegesRequired": "NONE", "confidentialityImpact": "HIGH" } }, { "other": { "type": "ssvc", "content": { "timestamp": "2026-01-07T19:20:56.695860Z", "id": "CVE-2026-0669", "options": [ { "Exploitation": "none" }, { "Automatable": "yes" }, { "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": "2026-01-07T19:21:57.287Z" } } ] } }