Description
WordPress Plugin FancyBox for WordPress is prone to a security bypass vulnerability. Exploiting this issue may allow attackers to perform otherwise restricted actions and subsequently inject malicious Javascript payloads (malware) on the affected website. WordPress Plugin FancyBox for WordPress version 3.0.2 is vulnerable; prior versions may also be affected.
Remediation
Update to plugin version 3.0.4 or latest
References
https://blog.sucuri.net/2015/02/analysis-of-the-fancybox-for-wordpress-vulnerability.html
https://blog.sucuri.net/2015/02/zero-day-in-the-fancybox-for-wordpress-plugin.html
https://codeseekah.com/2015/02/13/the-fancybox-for-wordpress-vulnerability/