VulnerabilityModified
CVE-2021-44857
It is possible to use action=mcrundo followed by action=mcrrestore to replace the content of any arbitrary page (that the user doesn't have edit rights for).
MEDIUM 6.5EPSS 0.87%
Does this matter?
Lower severity and a low EPSS score (0.87%). Track it; it rarely justifies an emergency change on its own.
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=mcrundo followed by action=mcrrestore to replace the content of any arbitrary page (that the user doesn't have edit rights for). This applies to any public wiki, or a private wiki that has at least one page set in $wgWhitelistRead.
- CVSS 3.1
- 6.5 MEDIUMCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N
- EPSS
- 0.87% probability · 57th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-862
- Affected
- mediawiki/mediawiki
- Source
- cve@mitre.org
References
- https://phabricator.wikimedia.org/T297322Third Party Advisory
- https://security.gentoo.org/glsa/202305-24
- https://www.mediawiki.org/wiki/2021-12_security_release/FAQVendor Advisory
- https://phabricator.wikimedia.org/T297322Third Party Advisory
- https://security.gentoo.org/glsa/202305-24
- https://www.mediawiki.org/wiki/2021-12_security_release/FAQVendor Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.