SB2014093009 - Cross-site scripting in MediaWiki

Description

This security bulletin contains information about 1 security vulnerability.

1) Cross-site scripting (CVE-ID: CVE-2014-7199)

Vulnerability allows a remote attacker to perform Cross-site scripting attacks.

An input validation error exists in MediaWiki before 1.19.19, 1.22.x before 1.22.11, and 1.23.x before 1.23.4. A remote authenticated attacker can trick the victim to follow a specially crafted link and execute arbitrary HTML and script code in victim's browser in security 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.

Remediation

Install update from vendor's website.

References

• http://secunia.com/advisories/61666
• http://www.debian.org/security/2014/dsa-3036
• http://www.openwall.com/lists/oss-security/2014/09/27/2
• https://bugzilla.wikimedia.org/show_bug.cgi?id=69008
• https://gerrit.wikimedia.org/r/#/c/162777/
• https://lists.wikimedia.org/pipermail/mediawiki-announce/2014-September/000161.html