Description

WordPress is prone to a cross-site scripting vulnerability because it fails to properly sanitize user-supplied input. An attacker may leverage this issue to execute arbitrary script code in the browser of an unsuspecting user in the context of the affected site. This can allow the attacker to steal cookie-based authentication credentials and launch other attacks. WordPress versions 3.9.x ranging from 3.9 and up to (and including) 3.9.9 are vulnerable.

Remediation

Update to WordPress version 3.9.10 or latest

References

https://www.incapsula.com/blog/incapsula-blocks-xss-vulnerability-wordpress-4-4-1.html

https://twitter.com/brutelogic/status/685105483397619713

http://codex.wordpress.org/Version_3.9.10

http://www.openwall.com/lists/oss-security/2016/01/08/4

Related Vulnerabilities

WordPress Plugin Better Font Awesome Cross-Site Scripting (2.0.3)

Drupal Cross-Site Request Forgery (CSRF) Vulnerability (CVE-2008-3744)

PHP NULL Pointer Dereference Vulnerability (CVE-2016-6292)

WordPress Plugin 360 Product Viewer Cross-Site Scripting (2.5.1)

WordPress Plugin WordPress WP-Advanced-Search Cross-Site Request Forgery (3.3.8)

Severity

High

Classification

CVE-2016-1564 CWE-79 CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N

Tags

Missing Update XSS