CVE-2021-46150 — MEDIUM (4.8)

Q: How severe is CVE-2021-46150?

CVE-2021-46150 has been rated MEDIUM with a CVSS base score of 4.8/10. Review the CVSS metrics above for detailed severity breakdown.

Q: Is there a patch for CVE-2021-46150?

Check the references section above for vendor advisories and patch information. Affected products include: Mediawiki Mediawiki.

Vulnerability 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.

CVSS Score

4.8

MEDIUM

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

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

HIGH

User Interaction

REQUIRED

Scope

CHANGED

Confidentiality

LOW

Integrity

LOW

Availability

NONE

Affected Products

Vendor	Product	Versions
Mediawiki	Mediawiki	< 1.35.5

Related Weaknesses (CWE)

CWE-79

References

https://gerrit.wikimedia.org/r/plugins/gitiles/mediawiki/extensions/CheckUser/+/Third Party Advisory
https://phabricator.wikimedia.org/T292795ExploitThird Party Advisory
https://gerrit.wikimedia.org/r/plugins/gitiles/mediawiki/extensions/CheckUser/+/Third Party Advisory
https://phabricator.wikimedia.org/T292795ExploitThird Party Advisory

FAQ

What is CVE-2021-46150?

CVE-2021-46150 is a vulnerability with a CVSS score of 4.8 (MEDIUM). 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 pay...

How severe is CVE-2021-46150?

CVE-2021-46150 has been rated MEDIUM with a CVSS base score of 4.8/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2021-46150?

Check the references section above for vendor advisories and patch information. Affected products include: Mediawiki Mediawiki.