{"schema":"threatline.record/2","record":{"id":"CVE-2026-90915","aliases":[],"summary":"Joomla! Core - [20260905] - Core - Arbitrary directory deletion via cache purge action in Joomla 4.0.0-5.4.8, 6.0.0-6.1.3","details":"Joomla! Core - [20260905] - Core - Arbitrary directory deletion via cache purge action in Joomla 4.0.0-5.4.8, 6.0.0-6.1.3 -An improper validation of the cache group name allowed path traverals in the file storage of the caching layer, resulting in arbitrary directory deletions.","categories":["Applications & CMS"],"product":"Joomla! CMS","vendor":"Joomla! Project","ecosystem":null,"affected_ranges":[{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-90915","source_modified_at":"2026-09-30T16:13:13.632Z","fetched_at":"2026-10-23T18:52:38.922436Z","product":"Joomla! CMS","vendor":"Joomla! Project","versions":[{"status":"affected","version":"4.0.0-5.4.8"},{"status":"affected","version":"6.0.0-6.1.3"}],"defaultStatus":"unaffected"}],"fixed_versions":[],"cvss":7,"severity":"High","kev":{"listed":false},"epss":{"probability":0.00345,"percentile":0.26781,"score_date":"2026-10-23"},"published_at":"2026-09-29T16:45:45.783Z","modified_at":"2026-09-30T16:13:13.632Z","provenance":[{"source":"CVE List","url":"https://www.cve.org/CVERecord?id=CVE-2026-90915","fetched_at":"2026-10-23T18:52:38.922436Z","source_modified_at":"2026-09-30T16:13:13.632Z"},{"source":"EPSS","url":"https://api.first.org/data/v1/epss?cve=CVE-2026-90915","fetched_at":"2026-10-23T18:42:43.628194Z","source_modified_at":"2026-10-23"}],"sources":["CVE List","EPSS"],"references":[{"source":"CVE List","url":"https://www.joomla.org/","tags":["product"]},{"source":"CVE List","url":"https://developer.joomla.org/security-centre/1085-20260905-core-arbitrary-directory-deletion-via-cache-purge-action.html","tags":["vendor-advisory"]}],"locations":[],"motoko_assessment":{"status":"requires_architecture_review","automatic_remediation":false},"cve_state":"PUBLISHED","cvss_source":"CVE List","ssvc":{"exploitation":"none","automatable":"no","technical_impact":"partial","assessed_at":"2026-09-30T15:06:38.308703Z"},"classification":{"method":"product-first software-layer rules","rules_version":"2.1","matched_on":"product","confidence":"heuristic","reviewed":false},"change_timestamp":"2026-09-30T16:13:13.632Z","content_hash":"95745939037317d6c9b99c1bfe5fee2809fa54375831ae739ca8b7f744cd8bb9"}}