Cross-site scripting in MediaWiki - CVE-2023-36675
Published: July 3, 2023
Vulnerability identifier: #VU77907
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-2023-36675
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 within BlockLogFormatter.php in BlockLogFormatter. 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
Debian Linux
Fedora
mediawiki (Debian package)
mediawiki
Debian Linux
Fedora
mediawiki (Debian package)
mediawiki
How to mitigate CVE-2023-36675
Install update from vendor's website.
MediaWiki - addressed in versions 1.35.11, 1.38.7, 1.39.4
mediawiki (Debian package) - addressed in versions 1:1.35.11-1~deb11u1, 1:1.39.4-1~deb12u1
mediawiki - addressed in versions 1.38.7-1.fc37, 1.39.4-1.fc38, 1.39.4-1.fc39
mediawiki (Debian package) - addressed in versions 1:1.35.11-1~deb11u1, 1:1.39.4-1~deb12u1
mediawiki - addressed in versions 1.38.7-1.fc37, 1.39.4-1.fc38, 1.39.4-1.fc39