CVE-2020-27957 — MEDIUM (5.4)

Q: How severe is CVE-2020-27957?

CVE-2020-27957 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-2020-27957?

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

Vulnerability Description

The RandomGameUnit extension for MediaWiki through 1.35 was not properly escaping various title-related data. When certain varieties of games were created within MediaWiki, their names or titles could be manipulated to generate stored XSS within the RandomGameUnit extension.

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	<= 1.35

Related Weaknesses (CWE)

CWE-79

References

https://gerrit.wikimedia.org/r/q/I497d2076038f75c9eb77e0e250f2af56f5bd2bfcPatchVendor Advisory
https://phabricator.wikimedia.org/T266400ExploitVendor Advisory
https://gerrit.wikimedia.org/r/q/I497d2076038f75c9eb77e0e250f2af56f5bd2bfcPatchVendor Advisory
https://phabricator.wikimedia.org/T266400ExploitVendor Advisory

FAQ

What is CVE-2020-27957?

CVE-2020-27957 is a vulnerability with a CVSS score of 5.4 (MEDIUM). The RandomGameUnit extension for MediaWiki through 1.35 was not properly escaping various title-related data. When certain varieties of games were created within MediaWiki, their names or titles could...

How severe is CVE-2020-27957?

CVE-2020-27957 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-2020-27957?

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