CVE-2021-41798: XSS
First published: Mon Oct 11 2021(Updated: )
MediaWiki before 1.36.2 allows XSS. Month related MediaWiki messages are not escaped before being used on the Special:Search results page.
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 | <1.36.2 | |
| Fedora | =33 | |
| Fedora | =34 | |
| Fedora | =35 |
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.
Reference Links
- https://lists.wikimedia.org/hyperkitty/list/wikitech-l@lists.wikimedia.org/thread/2IFS5CM2YV4VMSODPX3J2LFHKSEWVFV5/
- https://phabricator.wikimedia.org/T285515
- https://security-tracker.debian.org/tracker/CVE-2021-41798
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/CJDYJQWT43GBD6GNQ4OW7JOZ6WQ6DZTN/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/MDBPECBWN6LWNSWIQMVXK6PP4YFEUYHA/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/QNEAI2T3Y65I55ZB6UE6RMC662RZTGRX/
- https://security.gentoo.org/glsa/202305-24
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/QNEAI2T3Y65I55ZB6UE6RMC662RZTGRX/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/CJDYJQWT43GBD6GNQ4OW7JOZ6WQ6DZTN/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/MDBPECBWN6LWNSWIQMVXK6PP4YFEUYHA/
Frequently Asked Questions
What is the severity of CVE-2021-41798?
CVE-2021-41798 is classified as a medium severity vulnerability due to the potential for cross-site scripting (XSS) attacks.
How do I fix CVE-2021-41798?
To fix CVE-2021-41798, upgrade MediaWiki to version 1.36.2 or later.
What systems are affected by CVE-2021-41798?
CVE-2021-41798 affects MediaWiki versions prior to 1.36.2, along with various Fedora and Debian packages.
What type of vulnerability is CVE-2021-41798?
CVE-2021-41798 is an XSS vulnerability that affects the way MediaWiki handles month-related messages.
When was CVE-2021-41798 published?
CVE-2021-41798 was published in 2021, impacting multiple versions of MediaWiki prior to 1.36.2.
- collector/security-tracker-debian
- agent/type
- agent/weakness
- agent/severity
- agent/remedy
- agent/description
- collector/mitre-cve
- source/MITRE
- agent/references
- 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
- package-manager/debian
- vendor/mediawiki
- canonical/mediawiki
- vendor/fedoraproject
- canonical/fedora
- version/fedora/33
- version/fedora/34
- version/fedora/35