CVE-2021-41798: XSS
MediaWiki before 1.36.2 allows XSS. Month related MediaWiki messages are not escaped before being used on the Special:Search results page.
Affected Software
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Upgrade
Upgrade
debian/mediawikito a version that resolves this vulnerability.Fixed in 1:1.31.16-1+deb10u2Fixed in 1:1.31.16-1+deb10u6Fixed in 1:1.35.11-1~deb11u1Fixed in 1:1.35.13-1~deb11u1Fixed in 1:1.39.4-1~deb12u1Fixed in 1:1.39.5-1~deb12u1Fixed in 1:1.39.5-1
Event History
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.