Missing Authorization Affecting mediawiki package, versions <1:1.35.4-1+deb11u2


Severity

Recommended
0.0
medium
0
10

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Threat Intelligence

EPSS
0.87% (55th percentile)

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  • Snyk IDSNYK-DEBIAN11-MEDIAWIKI-2320638
  • published16 Dec 2021
  • disclosed17 Dec 2021

Introduced: 16 Dec 2021

CVE-2021-44857  (opens in a new tab)
CWE-862  (opens in a new tab)

How to fix?

Upgrade Debian:11 mediawiki to version 1:1.35.4-1+deb11u2 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream mediawiki package and not the mediawiki package as distributed by Debian. See How to fix? for Debian:11 relevant fixed versions and status.

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 Base Scores

version 3.1