CVE-2021-44857

mediawiki: information disclosure and manipulation possible under specific conditions

Published Dec 17, 2021 CVSS 3.1 · 6.5 Medium EPSS < 1% KEV · Not listed
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.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

Source ID Title
Debian DSA Debian DSA DSA-5021-1 mediawiki security update
EUVD EUVD EUVD-2021-31660 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.
History

No history.

Weaknesses

Sources

Status
PUBLISHED
Assigner
mitre
Published
Updated
Aug 4, 2024, 4:32 AM
Reserved
Dec 13, 2021, 12:00 AM
Status
Modified
Published
Dec 17, 2021, 4:15 AM
Modified
Jun 17, 2026, 4:12 AM
Severity
Moderate
Public date
Dec 16, 2021, 12:00 AM