The OAuth extension for MediaWiki improperly negotiates a new client token only over Special:OAuth/initiate, which allows attackers to bypass intended IP address access restrictions by making an API request with an existing token.
| Software | From | Fixed in |
|---|---|---|
| mediawiki / mediawiki | - | 1.25.3 |
| fedoraproject / fedora | 22 | 22.x |
| fedoraproject / fedora | 23 | 23.x |
| fedoraproject / fedora | 21 | 21.x |