CVE-2021-42047 — MEDIUM (5.4)

Q: How severe is CVE-2021-42047?

CVE-2021-42047 has been rated MEDIUM with a CVSS base score of 5.4/10. Review the CVSS metrics above for detailed severity breakdown.

Q: Is there a patch for CVE-2021-42047?

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

Vulnerability Description

An issue was discovered in the Growth extension in MediaWiki through 1.36.2. On any Wiki with the Mentor Dashboard feature enabled, users can login with a mentor account and trigger an XSS payload (such as alert) via Growthexperiments-mentor-dashboard-mentee-overview-no-js-fallback.

CVSS Score

5.4

MEDIUM

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

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

REQUIRED

Scope

CHANGED

Confidentiality

LOW

Integrity

LOW

Availability

NONE

Affected Products

Vendor	Product	Versions
Mediawiki	Mediawiki	<= 1.36.2

Related Weaknesses (CWE)

CWE-79

References

https://gerrit.wikimedia.org/r/c/mediawiki/extensions/GrowthExperiments/+/720088PatchVendor Advisory
https://phabricator.wikimedia.org/T289063PatchVendor Advisory
https://gerrit.wikimedia.org/r/c/mediawiki/extensions/GrowthExperiments/+/720088PatchVendor Advisory
https://phabricator.wikimedia.org/T289063PatchVendor Advisory

FAQ

What is CVE-2021-42047?

CVE-2021-42047 is a vulnerability with a CVSS score of 5.4 (MEDIUM). An issue was discovered in the Growth extension in MediaWiki through 1.36.2. On any Wiki with the Mentor Dashboard feature enabled, users can login with a mentor account and trigger an XSS payload (su...

How severe is CVE-2021-42047?

CVE-2021-42047 has been rated MEDIUM with a CVSS base score of 5.4/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2021-42047?

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