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CVE-2026-88857: CWE-434 Unrestricted Upload of File with Dangerous Type in OrdaSoft.com OrdaSoft Joomla Gallery free extension for Joomla

0
Critical
VulnerabilityCVE-2026-88857cvecve-2026-88857cwe-434
Published: 09/20/2026 (09/20/2026, 17:54:20 UTC)
Source: CVE Database V5
Vendor/Project: OrdaSoft.com
Product: 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

Attack Vector
Network
Attack Complexity
Low
Attack Requirements
None
Privileges Required
High
User Interaction
None
Vuln. Confidentiality
High
Vuln. Integrity
High
Vuln. Availability
High
Subsq. Confidentiality
High
Subsq. Integrity
High
Subsq. Availability
High
CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H

Affected software

OrdaSoft.com

OrdaSoft Joomla Gallery free extension for Joomla

Affected versions
=1.0.0-6.2.6

OrdaSoft.com

OrdaSoft Joomla Gallery extension for Joomla

Affected versions
=1.0.0-6.2.6

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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