(1) ApiBlock.php, (2) ApiCreateAccount.php, (3) ApiLogin.php, (4) ApiMain.php, (5) ApiQueryDeletedrevs.php, (6) ApiTokens.php, and (7) ApiUnblock.php in includes/api/ in MediaWiki 1.19.x before 1.19.8, 1.20.x before 1.20.7, and 1.21.x before 1.21.2 allow remote attackers to obtain CSRF tokens and bypass the cross-site request forgery (CSRF) protection mechanism via a JSONP request to wiki/api.php.
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Mediawiki | Mediawiki | 1.19.0 (including) | 1.19.0 (including) |
| Mediawiki | Mediawiki | 1.19.1 (including) | 1.19.1 (including) |
| Mediawiki | Mediawiki | 1.19.2 (including) | 1.19.2 (including) |
| Mediawiki | Mediawiki | 1.19.3 (including) | 1.19.3 (including) |
| Mediawiki | Mediawiki | 1.19.4 (including) | 1.19.4 (including) |
| Mediawiki | Mediawiki | 1.19.5 (including) | 1.19.5 (including) |
| Mediawiki | Mediawiki | 1.19.6 (including) | 1.19.6 (including) |
| Mediawiki | Mediawiki | 1.19.7 (including) | 1.19.7 (including) |
| Mediawiki | Mediawiki | 1.20 (including) | 1.20 (including) |
| Mediawiki | Mediawiki | 1.20.1 (including) | 1.20.1 (including) |
| Mediawiki | Mediawiki | 1.20.2 (including) | 1.20.2 (including) |
| Mediawiki | Mediawiki | 1.20.3 (including) | 1.20.3 (including) |
| Mediawiki | Mediawiki | 1.20.4 (including) | 1.20.4 (including) |
| Mediawiki | Mediawiki | 1.20.5 (including) | 1.20.5 (including) |
| Mediawiki | Mediawiki | 1.20.6 (including) | 1.20.6 (including) |
| Mediawiki | Mediawiki | 1.21 (including) | 1.21 (including) |
| Mediawiki | Mediawiki | 1.21.1 (including) | 1.21.1 (including) |