CVE-2021-44858
First published: Mon Dec 20 2021(Updated: )
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.
Credit: cve@mitre.org cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| MediaWiki | <1.35.5 | |
| MediaWiki | >=1.36.0<1.36.3 | |
| MediaWiki | >=1.37.0<1.37.1 |
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Reference Links
Frequently Asked Questions
What is the severity of CVE-2021-44858?
CVE-2021-44858 has a medium severity rating due to its potential impact on the privacy of private wiki pages.
How do I fix CVE-2021-44858?
To fix CVE-2021-44858, upgrade MediaWiki to version 1.35.5, 1.36.3, or 1.37.1 or later.
What versions of MediaWiki are affected by CVE-2021-44858?
CVE-2021-44858 affects MediaWiki versions prior to 1.35.5, 1.36.x before 1.36.3, and 1.37.x before 1.37.1.
What type of attack does CVE-2021-44858 enable?
CVE-2021-44858 allows an attacker to view private pages on a private wiki by exploiting a specific sequence of actions.
What environments are impacted by CVE-2021-44858?
CVE-2021-44858 primarily impacts private wikis using MediaWiki that have at least one page set in $wgWhitelistRead.
- agent/type
- agent/references
- agent/weakness
- agent/severity
- agent/remedy
- agent/description
- collector/mitre-cve
- source/MITRE
- agent/first-publish-date
- agent/last-modified-date
- agent/author
- agent/event
- agent/source
- agent/softwarecombine
- agent/tags
- collector/nvd-api
- source/NVD
- agent/software-canonical-lookup
- agent/software-canonical-lookup-request
- collector/nvd-index
- vendor/mediawiki
- canonical/mediawiki
- version/mediawiki/1.36.0
- version/mediawiki/1.37.0