CVE-2023-37255

Public Exploit

Description

An issue was discovered in the CheckUser extension for MediaWiki through 1.39.3. In Special:CheckUser, a check of the "get edits" type is vulnerable to HTML injection through the User-Agent HTTP request header.

Category

6.1
CVSS
Severity: Medium
CVSS 3.1 •
EPSS 0.09%
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
https://phabricator.wikimedia.org/T333569 issue tracking exploit

Frequently Asked Questions

What is the severity of CVE-2023-37255?
CVE-2023-37255 has been scored as a medium severity vulnerability.
How to fix CVE-2023-37255?
To fix CVE-2023-37255, 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-2023-37255 being actively exploited in the wild?
It is possible that CVE-2023-37255 is being exploited or will be exploited in a near future based on public information. 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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