CVE-2026-88856

Joomla Extension - OrdaSoft.com - Authenticated, Privileged Remote Code Execution in OrdaSoft Joomla Gallery extension for Joomla < 6.2.7 - The extensions updateOSGallery(), reached via task=update_osgallery, read a JSON request body and called the value of a method field as a live PHP function, passing the value of a package field as its single argument, with no allow-list or is_callable() check of any kind. Any function name compatible with a single argument was directly reachable, including system, exec, shell_exec, and passthru.

  • Published Sep 20, 2026
  • CVSS 9.4 critical
  • 0.7% chance of exploitation in the next 30 days (EPSS)

Affected software

CVE-2026-88856 at the National Vulnerability Database