------------------------------------------------------------------------ Cross-Site Request Forgery vulnerability in Add From Server WordPress Plugin ------------------------------------------------------------------------ Edwin Molenaar, July 2016 ------------------------------------------------------------------------ Abstract ------------------------------------------------------------------------ It was discovered that Add From Server is vulnerabile to Cross-Site Request Forgery. It can be exploited by luring the target user into clicking a specially crafted link or visiting a malicious website (or advertisement). An attacker can use this issue to add illegal content to the victims server, or add very large files to the victim's server to exaust the amount of avalible disk space. ------------------------------------------------------------------------ OVE ID ------------------------------------------------------------------------ OVE-20160718-0004 ------------------------------------------------------------------------ Tested versions ------------------------------------------------------------------------ These issues were successfully tested on Add From Server WordPress Plugin version 6.2. ------------------------------------------------------------------------ Fix ------------------------------------------------------------------------ This issue is resolved in Add From Server version 3.3.2. ------------------------------------------------------------------------ Details ------------------------------------------------------------------------ https://sumofpwn.nl/advisory/2016/cross_site_request_forgery_vulnerability_in_add_from_server_wordpress_plugin.html ------------------------------------------------------------------------ Summer of Pwnage (https://sumofpwn.nl) is a Dutch community project. Its goal is to contribute to the security of popular, widely used OSS projects in a fun and educational way.