Cross-site scripting in MediaWiki - CVE-2022-28202
Published: April 6, 2022
Vulnerability identifier: #VU61909
CSH Severity: Low
CVSS v4: 5.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N]
CVE-ID: CVE-2022-28202
CWE-ID: CWE-79
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The disclosed vulnerability allows a remote attacker to perform cross-site scripting (XSS) attacks.
The vulnerability exists due to insufficient sanitization of user-supplied data in the widthheight, widthheightpage and nbytes properties of messages. A remote attacker can trick the victim to follow a specially crafted link and execute arbitrary HTML and script code in user's browser in context of vulnerable website.
Successful exploitation of this vulnerability may allow a remote attacker to steal potentially sensitive information, change appearance of the web page, perform phishing and drive-by-download attacks.
Affected software
MediaWiki
Arch Linux
Fedora
mediawiki
Arch Linux
Fedora
mediawiki
How to mitigate CVE-2022-28202
Install updates from vendor's website.
MediaWiki - addressed in versions 1.35.6, 1.36.4, 1.37.2
mediawiki - update to 1.37.2-1.fc36
mediawiki - update to 1.37.2-1.fc36