Joomla! Core: Arbitrary Dir Deletion via Cache Purge (v4.0.0-5.4.8,6.0.0-6.1.3)
CVE-2026-90915 Published on September 29, 2026
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
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.
Vulnerability Analysis
CVE-2026-90915 can be exploited with network access, and requires user privileges. This vulnerability is considered to have a low attack complexity. The potential impact of an exploit of this vulnerability is considered to have no impact on confidentiality and integrity and availability.
Weakness Type
What is a Directory traversal Vulnerability?
The software uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the software does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory.
CVE-2026-90915 has been classified to as a Directory traversal vulnerability or weakness.
Products Associated with CVE-2026-90915
Want to know whenever a new CVE is published for Joomla? stack.watch will email you.
Affected Versions
Joomla! Project Joomla! CMS:- Version 4.0.0-5.4.8 is affected.
- Version 6.0.0-6.1.3 is affected.