PT-2022-12584 · Mediawiki+1 · Mediawiki+1

Zabe · Published 2021-12-20 · Updated 2024-03-06 · CVE-2021-46150

Positive Technologies (AI Summary)

CVSS v3.1

4.8

Medium

Base vector

AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N

Name of the Vulnerable Software and Affected Versions MediaWiki versions prior to 1.35.5 MediaWiki versions 1.36.x prior to 1.36.3 MediaWiki versions 1.37.x prior to 1.37.1

Description An issue in MediaWiki allows for XSS due to date mishandling in Special:CheckUserLog, as demonstrated by an XSS payload in MediaWiki:October.

Recommendations For MediaWiki versions prior to 1.35.5, update to version 1.35.5 or later. For MediaWiki versions 1.36.x prior to 1.36.3, update to version 1.36.3 or later. For MediaWiki versions 1.37.x prior to 1.37.1, update to version 1.37.1 or later.

Exploit

Fix

XSS

Weakness Enumeration

CWE-79

Related Identifiers

ALT-PU-2021-3561

ALT-PU-2022-1199

BIT-MEDIAWIKI-2021-46150

CVE-2021-46150

Affected Products

Alt Linux

Mediawiki

References · 5

• 🔥 https://phabricator.wikimedia.org/T292795 · Exploit
• https://osv.dev/vulnerability/BIT-mediawiki-2021-46150 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2021-46150 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2021-46150 · Security Note
• https://gerrit.wikimedia.org/r/plugins/gitiles/mediawiki/extensions/CheckUser/+/79c2c49a18f96b159258958feca90fce964c350a · Note