CVE-2026-77027

HIGH CVSS 4.0: 8.6
Updated Aug 22, 2026
Joomla
Parameter Value
CVSS 8.6 (HIGH)
Type CWE-79 (Cross-Site Scripting (XSS))
Vendor Joomla
Public PoC No

Joomla Extension - fabrikar.com - Unauthenticated stored XSS in Fabrik < 4.7.2 - The handling of user supplied input in the jsactions feature leads to an stored XSS vector.

Attack Parameters

Attack Vector
Network
Can be exploited remotely
Attack Complexity
Low
Easy to exploit
Attack Requirements
None
No additional conditions
Privileges Required
None
No privileges needed
User Interaction
Active
User action required

Impact Assessment

Confidentiality
High
Complete data leak
Integrity
High
Complete data modification
Availability
Low
Partial disruption

CVSS Vector v4.0