CVE-2026-65891

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.

CVSS v3.1

6.5 MEDIUMCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N

EPSS

0.25% chance of exploitation in the next 30 days, 17th percentile

Published

2026-07-29

Updated

2026-07-31

Proof-of-concept exploits (1)

• murrez/CVE-2026-658910★ · 2026-08-10

References

• CVE Record
• NVD entry

Related

• CVE-2026-0740
• CVE-2026-0911
• CVE-2026-1306
• CVE-2026-41940
• CVE-2026-6433
• CVE-2026-8181