CVE-2021-46150
4.8
MEDIUM
CVSS 3.1
EPSS 0.18%
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.
How to fix CVE-2021-46150
To remediate CVE-2021-46150, upgrade the affected package to a fixed version below.
- Bitnami/mediawiki—upgrade to 1.35.5 or later
Is CVE-2021-46150 being exploited?
Low — EPSS is 0.2%, meaning exploitation activity has not been observed at scale.
Affected packages (1)
- from 0, < 1.35.5, >= 1.36.0, < 1.36.3, >= 1.37.0, < 1.37.1
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | MEDIUM4.8 | CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N |