CVE-2026-77990

MEDIUM CVSS 4.0: 5.3 EPSS 0.21%
Updated Aug 27, 2026
Joomla
Parameter Value
CVSS 5.3 (MEDIUM)
Type CWE-639 (Authorization Bypass)
Vendor Joomla
Public PoC No

Joomla Extension - joomlaeventmanager.net - Attendee lists readable by any logged-in user in Joomla Event Manager < 5.0.1 - A non-manager can therefore read attendee names, usernames, registration dates and statuses for events they do not manage, including lists belonging to unpublished events.

Attack Parameters

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

Impact Assessment

Confidentiality
Low
Partial data leak
Integrity
None
No data modification
Availability
None
No disruption

CVSS Vector v4.0

Weakness Type (CWE)