Vulnerability · Published Jul 29, 2026 · Assigned by Joomla
CVE-2026-65891Joomla Extension - joomlacontenteditor.net - Creation of hidden files and unintended file overwrite via rename function in Joomla Content Editor (JCE) < 2.9.99.10
Medium 6.5
In plain English
A medium-severity improper input validation in Joomla Content Editor (JCE) extension for Joomla from joomlacontenteditor.net. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 27% of all known vulnerabilities). Ready-made attack tooling exists: public proof-of-concept code.
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.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| joomlacontenteditor.net | Joomla Content Editor (JCE) extension for Joomla | 1.0.0-2.9.99.9 |
Weakness: CWE-20 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N