What is CVE-2021-46150?

CVE-2021-46150 is a medium-severity vulnerability in Mediawiki, classified under Cross-site Scripting. CVSS score: 4.8/10. Published 2022-01-10.

How severe is CVE-2021-46150?

Medium severity. CVSS v3 base score is 4.8 out of 10.

XSS in Mediawiki

CVE-2021-46150

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.

Vulnerability class: XSS (Cross-Site Scripting)

EPSS: 0.006 (47.3th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 4.8 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N.

Affected products

Mediawiki
N/a — versions n/a

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

cve@mitre.org (Exploit, Third Party Advisory, x_refsource_MISC)
cve@mitre.org (Third Party Advisory, x_refsource_MISC)

Frequently asked questions

What is CVE-2021-46150?: CVE-2021-46150 is a medium-severity vulnerability in Mediawiki, classified under Cross-site Scripting. CVSS score: 4.8/10. Published 2022-01-10.
How severe is CVE-2021-46150?: Medium severity. CVSS v3 base score is 4.8 out of 10.