CVE-2026-88857: Ordasoft.com Ordasoft Joomla Gallery Extension For Joomla

Critical severity, CVSS 9.4. EPSS: 0.6% chance of exploitation in the next 30 days.

Joomla Extension - OrdaSoft.com - Authenticated, Privileged Remote Code Execution in OrdaSoft Joomla Gallery extension for Joomla < 6.2.7 - The extensions saveWatermark() copied an uploaded file into a web-accessible directory using the client-supplied filename exactly as sent, with no extension check, no content check, and no filename sanitisation of any kind. An authenticated core.manage user could upload a .php file disguised with an image Content-Type header and execute it directly by requesting the resulting path.

Affected products

• Ordasoft.com Ordasoft Joomla Gallery Extension For Joomla: version 1.0.0-6.2.6 only
• Ordasoft.com Ordasoft Joomla Gallery Free Extension For Joomla: version 1.0.0-6.2.6 only

Published 2026-09-20. Last modified 2026-09-22.