Joomla 6.1.1 com_joomlaupdate Path Traversal RCE
CVE-2026-73327 Published on August 12, 2026
Joomla 6.1.1 Zip Slip Path Traversal via com_joomlaupdate extract.php
Joomla 6.1.1 contains a path traversal vulnerability in the com_joomlaupdate extension that allows a Super User to be induced into extracting a crafted archive containing directory traversal sequences or absolute paths in ZIP entry filenames. Attackers can supply malicious ZIP entry names with parent-directory segments or absolute paths to the extract.php extraction routine, causing files to be written outside the intended destination root and enabling persistent remote code execution via planted PHP files.
Vulnerability Analysis
CVE-2026-73327 can be exploited with network access. This vulnerability is consided to have a high level of 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-2026-73327 has been classified to as a Directory traversal vulnerability or weakness.
Products Associated with CVE-2026-73327
Want to know whenever a new CVE is published for Joomla? stack.watch will email you.
Affected Versions
Joomla! CMS:- Before and including 6.1.1 is affected.