An issue was discovered in MediaWiki before 1.35.5, 1.36.x before 1.36.3, and 1.37.x before 1.37.1. It is possible to use action=edit&undo= followed by action=mcrundo and action=mcrrestore to view private pages on a private wiki that has at least one page set in $wgWhitelistRead.
CVSS Details
- CVSS 3.1 Base Score: 7.5
- CVSS 3.1 Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N)
Covered by Rapid7
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Debian | — | Upgrade mediawiki | Dec 17, 2021 | Dec 17, 2021 |
| Freebsd | — | Upgrade mediawiki135Upgrade mediawiki137Upgrade mediawiki136 | Nov 4, 2022 | Dec 21, 2021 |
| Gentoo Linux | — | Upgrade www-apps/mediawiki. | May 23, 2023 | Dec 20, 2021 |
| Mediawiki | — | Upgrade MediaWiki to the latest version | Jan 4, 2022 | Dec 20, 2021 |
| Ubuntu | — | No solution exists | Jun 26, 2025 | Dec 20, 2021 |
Prioritise with Active Threat Intelligence
With curated Threat Intelligence, you can see which vulnerabilities truly put you at risk, prioritize what matters most, and act before attackers do.
Explore Intelligence Hub