CVE-2021-44858
HIGH7.5EPSS 0.39%mediawiki - security update
Published: 12/20/2021Modified: 4/28/2026
Description
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.
Affected packages (3)
- Bitnami/mediawikifrom 0, < 1.35.5, >= 1.36.0, < 1.36.3, >= 1.37.0, < 1.37.1
- Debian/mediawikifrom 0, < 1:1.35.4-1+deb11u2
- Debian/mediawikifrom 0, < 1:1.27.7-1+deb9u11
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | HIGH7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N |