CWE
754
Advisory Published
Updated

CVE-2021-44856

First published: Mon Dec 26 2022(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. A title blocked by AbuseFilter can be created via Special:ChangeContentModel due to the mishandling of the EditFilterMergedContent hook return value.

Credit: cve@mitre.org

Affected SoftwareAffected VersionHow 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<1.35.5
MediaWiki MediaWiki>=1.36.0<1.36.3
MediaWiki MediaWiki=1.37.0
MediaWiki MediaWiki=1.37.0-rc0
MediaWiki MediaWiki=1.37.0-rc1
MediaWiki MediaWiki=1.37.0-rc2

Never miss a vulnerability like this again

Sign up to SecAlerts for real-time vulnerability data matched to your software, aggregated from hundreds of sources.

Frequently Asked Questions

  • What is the severity of CVE-2021-44856?

    The severity of CVE-2021-44856 is medium with a CVSS score of 5.3.

  • How can I exploit CVE-2021-44856?

    We do not provide information on how to exploit vulnerabilities.

  • How do I check if my version of MediaWiki is affected by CVE-2021-44856?

    You can check if your version of MediaWiki is affected by CVE-2021-44856 by referring to the affected software list in the vulnerability description.

  • How do I fix CVE-2021-44856?

    To fix CVE-2021-44856, update your MediaWiki installation to version 1.35.5, 1.36.3, or 1.37.1.

  • Where can I find more information about CVE-2021-44856?

    You can find more information about CVE-2021-44856 in the references provided: [Phabricator](https://phabricator.wikimedia.org/T271037), [Wikitech-l Mailing List](https://lists.wikimedia.org/hyperkitty/list/wikitech-l@lists.wikimedia.org/thread/QEN3EK4JXAVJMJ5GF3GYOAKNJPEKFQYA/), [Debian Security Tracker](https://security-tracker.debian.org/tracker/CVE-2021-44856).

Contact

SecAlerts Pty Ltd.
132 Wickham Terrace
Fortitude Valley,
QLD 4006, Australia
info@secalerts.co
By using SecAlerts services, you agree to our services end-user license agreement. This website is safeguarded by reCAPTCHA and governed by the Google Privacy Policy and Terms of Service. All names, logos, and brands of products are owned by their respective owners, and any usage of these names, logos, and brands for identification purposes only does not imply endorsement. If you possess any content that requires removal, please get in touch with us.
© 2024 SecAlerts Pty Ltd.
ABN: 70 645 966 203, ACN: 645 966 203