CVE-2026-90915 – Joomla! Core – [20260905] – Core – Arbitrary directory deletion via cache purge action in

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.