VULNERABILITY INTELLIGENCE

CVE-2021-46150

CVSS score4.8 MEDIUM

EPSS probability0.67%

CISA KEVNot currently listed

Published2022-01-10

Last modified2026-06-17

CVSS vectorCVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N

Description

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. Special:CheckUserLog allows CheckUser XSS because of date mishandling, as demonstrated by an XSS payload in MediaWiki:October.

Weakness classification

nvd@nist.gov: CWE-79

Primary references

cve@mitre.org — Third Party Advisory
cve@mitre.org — Exploit, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108 — Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108 — Exploit, Third Party Advisory