CVE-2026-88857 File upload in OrdaSoft Joomla Gallery extension for Joomla
Authenticated privileged users can upload and execute arbitrary PHP files due to missing validation in the OrdaSoft Joomla Gallery extension.
- Exploited in the wild
- Not known
- Login needed
- An administrator
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-88857?
CVE-2026-88857 is a critical vulnerability in OrdaSoft.com OrdaSoft Joomla Gallery extension for Joomla, published on 20 Sep 2026. An attacker needs administrator access to exploit it, with no action from the victim.
Official description
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.
Weakness: CWE-434
Which versions are affected by CVE-2026-88857?
How do I fix CVE-2026-88857?
No fix has been published for CVE-2026-88857 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-88857 being exploited?
There is no known exploitation of CVE-2026-88857 in the wild and no public exploit code.
Sources
Also known as GHSA-7jj4-5xhm-pp7r.