CVE-2020-6163

Name: CVE-2020-6163
Creator: NVD / NIST
Published: 2020-01-08T02:15:10.553+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 6.1/10EPSS 0.70%

Last modified Jun 17, 2026

CVE-2020-6163 is a medium-severity vulnerability rated 6.1/10 on the CVSS scale. The WikibaseMediaInfo extension 1.35 for MediaWiki allows XSS because of improper template syntax within the PropertySuggestionsWidget template (in the templates/search/PropertySuggestionsWidget.mustache+dom file).. EPSS estimates a 0.70% chance of exploitation in the next 30 days.

Description

The WikibaseMediaInfo extension 1.35 for MediaWiki allows XSS because of improper template syntax within the PropertySuggestionsWidget template (in the templates/search/PropertySuggestionsWidget.mustache+dom file).

Metrics

CVSS 3.1

6.1/10

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

EPSS Probability

0.70%

48.4th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-79

Affected Software

Vendor	Product	Versions
Mediawiki	Mediawiki	1.35

References

https://gerrit.wikimedia.org/r/558203Third Party Advisory
https://phabricator.wikimedia.org/T240773Patch, Third Party Advisory
https://gerrit.wikimedia.org/r/558203Third Party Advisory
https://phabricator.wikimedia.org/T240773Patch, Third Party Advisory

Timeline

Published: Jan 8, 2020
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2020-6163?

How severe is CVE-2020-6163?

CVE-2020-6163 has a CVSS score of 6.1/10 (MEDIUM severity). The EPSS model estimates a 0.70% probability of exploitation in the next 30 days.

How do I fix CVE-2020-6163?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2020-6163?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST