CVE-2026-65891 Path traversal in Joomla Content Editor (JCE) extension for Joomla
Authenticated users can rename files to hidden names or overwrite existing files due to improper input validation in the JCE extension.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-65891?
CVE-2026-65891 is a medium-severity path traversal vulnerability in joomlacontenteditor.net Joomla Content Editor (JCE) extension for Joomla, published on 29 Jul 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
Joomla Extension - joomlacontenteditor.net - Creation of hidden files and unintended file overwrite via rename function in Joomla Content Editor (JCE) < 2.20.2 - Improper input validation in the file rename functionality allowed an authenticated user with file management permissions to rename files to otherwise invalid names, resulting in the creation of hidden files. The issue also allowed existing files at the destination path to be unintentionally replaced.
Weakness: CWE-20
Which versions are affected by CVE-2026-65891?
It affects 1 product.
Products include Widgetfactorylimited Jce.
How do I fix CVE-2026-65891?
No fix has been published for CVE-2026-65891 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-2026-65891 being exploited?
There is no known exploitation of CVE-2026-65891 in the wild and no public exploit code.
Public exploit code: 1 proofs of concept on GitHub.
Other vulnerabilities in joomlacontenteditor.net Joomla Content Editor (JCE) extension for Joomla
Sources
Also known as GHSA-chfv-whhw-v522.