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CVE-2026-23899

HIGH CVSS 4.0: 8.6 EPSS 0.00%
Updated Apr 09, 2026
Joomla
Parameter Value
CVSS 8.6 (HIGH)
Affected Versions 3.0.0 — 6.0.4
Fixed In 5.4.4
Type CWE-284 (Improper Access Control)
Vendor Joomla
Public PoC No

An improper access check allows unauthorized access to webservice endpoints.

Attack Parameters

Attack Vector
Network
Can be exploited remotely
Attack Complexity
Low
Easy to exploit
Attack Requirements
None
No additional conditions
Privileges Required
High
Admin privileges needed
User Interaction
None
No user interaction needed

Impact Assessment

Confidentiality
High
Complete data leak
Integrity
High
Complete data modification
Availability
High
Complete denial of service

CVSS Vector v4.0

Vulnerable Products 2

Configuration From (including) Up to (excluding)
Joomla Joomla\!
cpe:2.3:a:joomla:joomla\!:*:*:*:*:*:*:*:*
3.0.0 5.4.4
Joomla Joomla\!
cpe:2.3:a:joomla:joomla\!:*:*:*:*:*:*:*:*
6.0.0 6.0.4