Advisory Published
Updated

CVE-2021-44854

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. The REST API publicly caches results from private wikis.

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

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Frequently Asked Questions

  • What is the severity of CVE-2021-44854?

    The severity of CVE-2021-44854 is medium with a severity value of 5.3.

  • How does CVE-2021-44854 impact MediaWiki?

    CVE-2021-44854 allows the REST API to publicly cache results from private wikis, potentially exposing sensitive information.

  • Which versions of MediaWiki are affected by CVE-2021-44854?

    MediaWiki versions before 1.35.5, 1.36.x before 1.36.3, and 1.37.x before 1.37.1 are affected by CVE-2021-44854.

  • What is the remedy for CVE-2021-44854 in Debian's MediaWiki package?

    For Debian's MediaWiki package, the remedy for CVE-2021-44854 is to update to version 1:1.39.5-1~deb12u1 or later.

  • Where can I find more information about CVE-2021-44854?

    More information about CVE-2021-44854 can be found at the following links: [phabricator.wikimedia.org](https://phabricator.wikimedia.org/T292763), [lists.wikimedia.org](https://lists.wikimedia.org/hyperkitty/list/wikitech-l@lists.wikimedia.org/thread/QEN3EK4JXAVJMJ5GF3GYOAKNJPEKFQYA/), and [security-tracker.debian.org](https://security-tracker.debian.org/tracker/CVE-2021-44854).

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