CVE-2026-66491 Joomla Extension - phoca.cz - Arbitrary File Read in Phoca Commander 1.0.0-6.1.3
An attacker can read arbitrary files on the server due to improper path limitation in the Phoca Commander extension for Joomla.
- Exploited in the wild
- Not known
- Login needed
- An administrator
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-66491?
CVE-2026-66491 is a high-severity path traversal vulnerability in phoca.cz Phoca Commander extension for Joomla, published on 7 Aug 2026. An attacker needs administrator access to exploit it, with no action from the victim.
Official description
Joomla Extension - phoca.cz - Arbitrary File Read in Phoca Commander 1.0.0-6.1.3 - Improper limitation of paths in the getSource function lead to an arbitrary file read vulnerability.
Weakness: CWE-22
Which versions are affected by CVE-2026-66491?
How do I fix CVE-2026-66491?
No fix has been published for CVE-2026-66491 yet. Limit exposure of the affected software until one is available.
Upgrade, and resolve every user-supplied path against an allowed base folder before opening it. More about Path traversal.
Is CVE-2026-66491 being exploited?
There is no known exploitation of CVE-2026-66491 in the wild and no public exploit code.
Public exploit code: 1 proofs of concept on GitHub.
Sources
Also known as GHSA-xj92-38c4-rf5r.