Main Vulnerability Database Vulnerabilities #VU81268

#VU81268 Stored cross-site scripting in MediaWiki - CVE-2023-3550

Published: September 29, 2023

Vulnerability identifier: #VU81268

Vulnerability risk: Low

CVSSv4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N/E:U/U:Clear

CVE-ID: CVE-2023-3550

CWE-ID: CWE-79

Exploitation vector: Remote access

Exploit availability: No public exploit available

Vulnerable software:
MediaWiki

Software vendor:
MediaWiki.org

Description

The disclosed vulnerability allows a remote user to perform cross-site scripting (XSS) attacks.

The vulnerability exists due to insufficient sanitization of user-supplied data in Special:Upload when handling XML files. A remote user can upload a specially crafted XML file and execute arbitrary HTML and script code in user's browser in context of vulnerable website.

Remediation

Install updates from vendor's website.

External links

https://lists.wikimedia.org/hyperkitty/list/mediawiki-announce@lists.wikimedia.org/thread/BRWOWACCHMYRIS7JRTT6XD44X3362MVL/