Description
Joomla! Core is prone to a security bypass vulnerability. Exploiting this issue may allow attackers to perform otherwise restricted actions by escalating their privileges. Joomla! Core versions 2.5.x ranging from 2.5.0 and up to and including 2.5.4 are vulnerable.
Remediation
Update to Joomla! Core version 2.5.5 or latest
References
Related Vulnerabilities
WordPress Plugin Query Interface Security Bypass (1.1)
WordPress Plugin Vertical News Scroller Unspecified Vulnerability (1.19)
WordPress Plugin Booking Calendar SQL Injection (8.4.4)
Joomla! Core 3.x.x Cross-Site Scripting (3.0.0 - 3.8.3)
WordPress Plugin WP Maintenance Mode Cross-Site Scripting (2.2.3)