Cross-site scripting in MediaWiki - CVE-2020-10960
Published: April 3, 2020
Vulnerability identifier: #VU26568
CSH Severity: Low
CVSS v4: 2.1 [CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:A/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N]
CVE-ID: CVE-2020-10960
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, related to jquery.makeCollapsible and CSS selector. 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
mediawiki (Debian package)
mediawiki (Debian package)
How to mitigate CVE-2020-10960
Install updates from vendor's website.
MediaWiki - addressed in versions 1.31.7, 1.33.3, 1.34.1
mediawiki (Debian package) - update to 1:1.31.7-1~deb10u1
mediawiki (Debian package) - update to 1:1.31.7-1~deb10u1