CVE-2026-88857: CWE-434 Unrestricted Upload of File with Dangerous Type in OrdaSoft.com OrdaSoft Joomla Gallery free extension for Joomla
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.
CVE-2026-88857: CWE-434 Unrestricted Upload of File with Dangerous Type in OrdaSoft.com OrdaSoft Joomla Gallery free extension for Joomla
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.
CVSS v4.0
Score 9.4critical
Affected software
OrdaSoft.com
OrdaSoft Joomla Gallery free extension for Joomla
OrdaSoft.com
OrdaSoft Joomla Gallery extension for Joomla
Weaknesses
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- Joomla
- Date Reserved
- 2026-09-10T10:27:00.130Z
- Cvss Version
- 4.0
- State
- PUBLISHED
Threat ID: 6ab01fa455bf5e2cf5576a2f
Added to database: 09/20/2026, 18:02:12 UTC
Last updated: 09/20/2026, 18:02:12 UTC
Views: 1
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