CVE-2021-41801
First published: Mon Oct 11 2021(Updated: )
The ReplaceText extension through 1.41 for MediaWiki has Incorrect Access Control. When a user is blocked after submitting a replace job, the job is still run, even if it may be run at a later time (due to the job queue backlog)
Credit: cve@mitre.org cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| debian/mediawiki | 1:1.31.16-1+deb10u2 1:1.31.16-1+deb10u6 1:1.35.11-1~deb11u1 1:1.35.13-1~deb11u1 1:1.39.4-1~deb12u1 1:1.39.5-1~deb12u1 1:1.39.5-1 | |
| MediaWiki MediaWiki | <1.31.16 | |
| MediaWiki MediaWiki | >=1.35.0<1.35.4 | |
| MediaWiki MediaWiki | >=1.36.0<1.36.2 | |
| <1.31.16 | ||
| >=1.35.0<1.35.4 | ||
| >=1.36.0<1.36.2 |
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Reference Links
- https://lists.wikimedia.org/hyperkitty/list/wikitech-l@lists.wikimedia.org/thread/2IFS5CM2YV4VMSODPX3J2LFHKSEWVFV5/
- https://phabricator.wikimedia.org/T279090
- https://security-tracker.debian.org/tracker/CVE-2021-41801
- https://lists.wikimedia.org/hyperkitty/list/wikitech-l%40lists.wikimedia.org/thread/2IFS5CM2YV4VMSODPX3J2LFHKSEWVFV5/
Frequently Asked Questions
What is CVE-2021-41801?
CVE-2021-41801 is a vulnerability in the ReplaceText extension through 1.41 for MediaWiki that has Incorrect Access Control.
What is the severity of CVE-2021-41801?
The severity of CVE-2021-41801 is high, with a CVSS score of 8.8.
How does CVE-2021-41801 impact MediaWiki?
CVE-2021-41801 allows a blocked user to still run a replace job in MediaWiki, even if they are blocked.
What is the affected software for CVE-2021-41801?
The affected software for CVE-2021-41801 includes MediaWiki versions 1.31.16, 1.35.0 to 1.35.4, and 1.36.0 to 1.36.2.
How do I fix CVE-2021-41801 in MediaWiki?
To fix CVE-2021-41801 in MediaWiki, update to versions 1.31.16-1+deb10u2, 1.31.16-1+deb10u6, 1.35.11-1~deb11u1, 1.35.13-1~deb11u1, 1.39.4-1~deb12u1, 1.39.5-1~deb12u1, or 1.39.5-1.
- collector/security-tracker-debian
- agent/type
- collector/nvd-index
- agent/software-canonical-lookup-request
- agent/severity
- agent/remedy
- agent/description
- collector/mitre-cve
- source/MITRE
- agent/references
- agent/first-publish-date
- collector/nvd-api
- source/NVD
- agent/software-canonical-lookup
- agent/last-modified-date
- agent/author
- agent/softwarecombine
- agent/tags
- agent/event
- package-manager/debian
- vendor/mediawiki
- canonical/mediawiki mediawiki
- version/mediawiki mediawiki/1.35.0
- version/mediawiki mediawiki/1.36.0