VulnerabilityModified
CVE-2021-44858
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.
HIGH 7.5EPSS 1.33%
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (1.33%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
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.
- CVSS 3.1
- 7.5 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
- EPSS
- 1.33% probability · 69th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-276
- Affected
- mediawiki/mediawiki
- Source
- cve@mitre.org
References
- https://phabricator.wikimedia.org/T297322Patch, Vendor Advisory
- https://security.gentoo.org/glsa/202305-24
- https://www.mediawiki.org/wiki/2021-12_security_release/FAQMitigation, Vendor Advisory
- https://phabricator.wikimedia.org/T297322Patch, Vendor Advisory
- https://security.gentoo.org/glsa/202305-24
- https://www.mediawiki.org/wiki/2021-12_security_release/FAQMitigation, Vendor Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.