An Incorrect Access Control vulnerability was found in Wikimedia MediaWiki 1.18.0 through 1.32.1. It is possible to bypass the limits on IP range blocks ($wgBlockCIDRLimit) by using the API. Fixed in 1.32.2, 1.31.2, 1.30.2 and 1.27.6.
Affected Software
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Mediawiki | Mediawiki | 1.18.0 (including) | 1.27.6 (excluding) |
| Mediawiki | Mediawiki | 1.30.0 (including) | 1.30.2 (excluding) |
| Mediawiki | Mediawiki | 1.31.0 (including) | 1.31.2 (excluding) |
| Mediawiki | Mediawiki | 1.32.0 (including) | 1.32.2 (excluding) |
| Mediawiki | Ubuntu | bionic | * |
| Mediawiki | Ubuntu | cosmic | * |
| Mediawiki | Ubuntu | devel | * |
| Mediawiki | Ubuntu | disco | * |
| Mediawiki | Ubuntu | eoan | * |
| Mediawiki | Ubuntu | esm-apps/bionic | * |
| Mediawiki | Ubuntu | esm-apps/focal | * |
| Mediawiki | Ubuntu | esm-apps/jammy | * |
| Mediawiki | Ubuntu | esm-apps/noble | * |
| Mediawiki | Ubuntu | focal | * |
| Mediawiki | Ubuntu | groovy | * |
| Mediawiki | Ubuntu | hirsute | * |
| Mediawiki | Ubuntu | impish | * |
| Mediawiki | Ubuntu | jammy | * |
| Mediawiki | Ubuntu | kinetic | * |
| Mediawiki | Ubuntu | lunar | * |
| Mediawiki | Ubuntu | mantic | * |
| Mediawiki | Ubuntu | noble | * |
| Mediawiki | Ubuntu | oracular | * |
| Mediawiki | Ubuntu | plucky | * |
| Mediawiki | Ubuntu | questing | * |
| Mediawiki | Ubuntu | trusty | * |
| Mediawiki | Ubuntu | upstream | * |