CVE-2021-42041

PoC —

CVSS 3.1

6.1 medium

EPSS

<1%p60

Published

Oct 6, 2021 (Oct 6, 2021)

Modified

Jun 17, 2026

Description

An issue was discovered in CentralAuth in MediaWiki through 1.36.2. The rightsnone MediaWiki message was not being properly sanitized and allowed for the injection and execution of HTML and JavaScript via the setchange log.

Vendors: mediawiki
Products: mediawiki
Weakness: CWE-79
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

NVD CVE.org GitHub PoCs EPSS (1.0%)

In the news0 stories

No ingested article mentions this CVE yet.