SB2015061703 - Cross-site scripting in Debian Linux

Description

This security bulletin contains information about 1 security vulnerability.

1) Cross-site scripting (CVE-ID: CVE-2015-3429)

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

An input validation error exists in example.html in Genericons before 3.3.1, as used in WordPress before 4.2.2,. 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

Cybersecurity Help is not aware of any official remediation provided by the vendor.

References

• http://lists.fedoraproject.org/pipermail/package-announce/2015-May/158271.html
• http://lists.fedoraproject.org/pipermail/package-announce/2015-May/158278.html
• http://packetstormsecurity.com/files/131802/WordPress-Twenty-Fifteen-4.2.1-Cross-Site-Scripting.html
• http://seclists.org/fulldisclosure/2015/May/41
• http://www.debian.org/security/2015/dsa-3328
• http://www.securityfocus.com/archive/1/535486/100/1000/threaded
• http://www.securityfocus.com/bid/74534
• https://github.com/Automattic/Genericons/commit/798ac98579dd72dfdb11bdee3e7bebf01cffb1f7
• https://wordpress.org/news/2015/05/wordpress-4-2-2/
• https://wpvulndb.com/vulnerabilities/7965
• https://www.digitalocean.com/community/tutorials/how-to-protect-your-wordpress-site-from-the-genericons-example-html-xss-vulnerability
• https://www.netsparker.com/cve-2015-3429-dom-xss-vulnerability-in-twenty-fifteen-wordpress-theme/