CVE-2023-37255: XSS
Published Jun 29, 2023
·Updated
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.
Affected Software
1 affected component
MediaWiki MediaWiki<=1.39.3
Event History
Jun 29, 2023
CVE Published
via MITRE·12:00 AM
Data Sourced
via MITRE·12:00 AM
Description
Data Sourced
via NVD·04:15 PM
DescriptionSeverityWeaknessAffected Software
Frequently Asked Questions
1
What is the vulnerability ID of this issue?
The vulnerability ID of this issue is CVE-2023-37255.
2
What is the affected software?
The affected software is MediaWiki version 1.39.3.
3
What is the severity of CVE-2023-37255?
The severity of CVE-2023-37255 is medium, with a CVSS score of 6.1.
4
What is the nature of the vulnerability?
The vulnerability allows HTML injection through the User-Agent HTTP request header in the Special:CheckUser page of the CheckUser extension for MediaWiki.
5
Is there a fix available for CVE-2023-37255?
Yes, upgrading to a version of MediaWiki that is not affected, such as a version after 1.39.3, will fix the vulnerability.