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.
CVSS 2.0
Severity: HIGH
Problem Type: CWE-287,
Products Affected
| Vendor | Product | Version |
|---|---|---|
| mediawiki | mediawiki | 1.21.1 |
| mediawiki | mediawiki | 1.19.5 |
| mediawiki | mediawiki | 1.20.4 |
| mediawiki | mediawiki | 1.20.5 |
| mediawiki | mediawiki | 1.20.6 |
| mediawiki | mediawiki | 1.19.7 |
| mediawiki | mediawiki | 1.20 |
| mediawiki | mediawiki | 1.19.0 |
| brion_vibber | centralauth_extension | - |
| mediawiki | mediawiki | 1.19.6 |
| mediawiki | mediawiki | 1.20.1 |
| mediawiki | mediawiki | 1.19.4 |
| mediawiki | mediawiki | 1.19 |
| mediawiki | mediawiki | 1.19.1 |
| mediawiki | mediawiki | 1.19.3 |
| mediawiki | mediawiki | 1.21 |
| mediawiki | mediawiki | 1.20.2 |
| mediawiki | mediawiki | 1.19.2 |
| mediawiki | mediawiki | 1.20.3 |