CVE-2017-8812

Description

MediaWiki before 1.27.4, 1.28.x before 1.28.3, and 1.29.x before 1.29.2 allows remote attackers to inject > (greater than) characters via the id attribute of a headline.

5.3

CVSS

Severity: Medium

CVSS 3.0 •

CVSS 2.0 •

EPSS 0.83% Top 30%

Vendor Advisory debian.org Vendor Advisory wikimedia.org

Affected: n/a MediaWiki before 1.27.4, 1.28.x before 1.28.3, and 1.29.x before 1.29.2

References

Link	Tags
http://www.securitytracker.com/id/1039812	vdb entry third party advisory
https://lists.wikimedia.org/pipermail/mediawiki-announce/2017-November/000216.html	mailing list patch vendor advisory
https://www.debian.org/security/2017/dsa-4036	third party advisory vendor advisory

Frequently Asked Questions

What is the severity of CVE-2017-8812?: CVE-2017-8812 has been scored as a medium severity vulnerability.
How to fix CVE-2017-8812?: To fix CVE-2017-8812, 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-2017-8812 being actively exploited in the wild?: As for now, there are no information to confirm that CVE-2017-8812 is being actively exploited. According to its EPSS score, there is a ~1% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2017-8812?: CVE-2017-8812 affects n/a MediaWiki before 1.27.4, 1.28.x before 1.28.3, and 1.29.x before 1.29.2.

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