CVE-2016-6334

Description

Cross-site scripting (XSS) vulnerability in the Parser::replaceInternalLinks2 method in MediaWiki before 1.23.15, 1.26.x before 1.26.4, and 1.27.x before 1.27.1 allows remote attackers to inject arbitrary web script or HTML via vectors involving replacement of percent encoding in unclosed internal links.

Category

6.1
CVSS
Severity: Medium
CVSS 3.0 •
CVSS 2.0 •
EPSS 0.20%
Vendor Advisory wikimedia.org
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
http://www.securityfocus.com/bid/98057 vdb entry
https://lists.wikimedia.org/pipermail/mediawiki-announce/2016-August/000195.html mailing list patch vendor advisory
https://bugzilla.redhat.com/show_bug.cgi?id=1369613 issue tracking
https://phabricator.wikimedia.org/T137264 third party advisory patch

Frequently Asked Questions

What is the severity of CVE-2016-6334?
CVE-2016-6334 has been scored as a medium severity vulnerability.
How to fix CVE-2016-6334?
To fix CVE-2016-6334, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2016-6334 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2016-6334 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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