PatchTheCEVCVE-2026-65891: Joomla Extension - joomlacontenteditor.net - Creation of hidden files and unintended file overwrite via rename
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Routine
MEDIUM 6.5UPGRADE
CVE-2026-65891 is a medium-severity flaw (CVSS 6.5) affecting jce. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.
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 unintention
Why this priority
- No elevated risk signals yet
A fixed release or distro patch exists.
Risk facts
| CVSS score | 6.5 (Medium) |
| Attack vector | Network (remote) |
| Attack complexity | Low |
| Privileges needed | Low |
| User interaction | None |
| EPSS exploit chance | 0.3% (top 74%) |
| CISA exploited list | No |
| Weakness | CWE-20 |
| Published | 2026-07-29 |
| Last modified | 2026-10-23 |
Publisher (CNA): Joomla! Project · Vendor: widgetfactorylimited
Am I affected?
Timeline
- Published CVE record published
- Updated Record last modified
widgetfactorylimited jce UPGRADE
Affected: < 2.20.2
Fixed in: 2.20.2
Safe to downgrade to: no unaffected older release
1. Check installed version
apt-cache policy jce || rpm -q jce || jce --version
2. UPGRADE to 2.20.2 (Debian / Ubuntu)
sudo apt update && sudo apt install --only-upgrade jce
2. UPGRADE (RHEL / Amazon Linux / Fedora)
sudo dnf upgrade jce
Note
Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.
Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.