Description
The CentralAuth extension for MediaWiki 1.19.x before 1.19.8, 1.20.x before 1.20.7, and 1.21.x before 1.21.2 caches a valid CentralAuthUser object in the centralauth_User cookie even when a user has not successfully logged in, which allows remote attackers to bypass authentication without a password.
Remediation
References
Related Vulnerabilities
PostgreSQL Improper Input Validation Vulnerability (CVE-2012-3489)
LimeSurvey Improper Control of Generation of Code ('Code Injection') Vulnerability (CVE-2007-5573)
OpenSSL Numeric Errors Vulnerability (CVE-2012-2131)
Moodle DEPRECATED: Code Vulnerability (CVE-2015-3177)
WordPress Plugin Job Manager Multiple Cross-Site Scripting Vulnerabilities (0.7.18)