Cross-site scripting in MediaWiki - CVE-2013-4568
Published: December 13, 2013 / Updated: December 22, 2020
Vulnerability identifier: #VU42238
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2013-4568
CWE-ID: CWE-79
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: MediaWiki.org
Affected software:
MediaWiki
MediaWiki
Detailed vulnerability description
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 Sanitizer::checkCss in MediaWiki before 1.19.9, 1.20.x before 1.20.8, and 1.21.x before 1.21.3. 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.
How to mitigate CVE-2013-4568
Install update from vendor's website.
Sources
- http://lists.fedoraproject.org/pipermail/package-announce/2013-December/122998.html
- http://lists.fedoraproject.org/pipermail/package-announce/2013-December/123011.html
- http://lists.wikimedia.org/pipermail/mediawiki-announce/2013-November/000135.html
- http://secunia.com/advisories/57472
- http://www.debian.org/security/2014/dsa-2891
- http://www.securityfocus.com/bid/63761
- https://bugzilla.wikimedia.org/attachment.cgi?id=13452&action=diff
- https://bugzilla.wikimedia.org/show_bug.cgi?id=55332