CVE-2026-66917: Joomgalleryfriends.net Joomgallery Extension For Joomla

High severity, CVSS 8.6. EPSS: 0.5% chance of exploitation in the next 30 days.

Joomla Extension - joomgalleryfriends.net - Stored XSS in JoomGallery < 4.4.0 - An authenticated, privileged can store an XSS payload in any image causing JS execution in every visitor's browser.

Affected products

• Joomgalleryfriends.net Joomgallery Extension For Joomla: version 4.0.0-4.3.0 only

Published 2026-08-22. Last modified 2026-08-26.