------------------------------------------------------------------------ Cross-Site Request Forgery in Photo Gallery WordPress Plugin allows deleting of images ------------------------------------------------------------------------ Umit Aksu, July 2016 ------------------------------------------------------------------------ Abstract ------------------------------------------------------------------------ A Cross-Site Request Forgery vulnerability was found in the Photo Gallery by Supsystic WordPress Plugin. This issue can be used by an attacker to delete arbitrary images from the Photo Gallery. ------------------------------------------------------------------------ OVE ID ------------------------------------------------------------------------ OVE-20160722-0002 ------------------------------------------------------------------------ Tested versions ------------------------------------------------------------------------ This issue was successfully tested on Photo Gallery by Supsystic [2] WordPress Plugin version 1.8.5. ------------------------------------------------------------------------ Fix ------------------------------------------------------------------------ This issue is resolved in Photo Gallery by Supsystic version 1.8.6 [3]. ------------------------------------------------------------------------ Introduction ------------------------------------------------------------------------ The Photo Gallery by Supsystic [2] WordPress Plugin can be used to create portfolios and image galleries. A Cross-Site Request Forgery vulnerability was found in the Photo Gallery by Supsystic WordPress Plugin. This issue can be used by an attacker to delete arbitrary images from the Photo Gallery. ------------------------------------------------------------------------ Details ------------------------------------------------------------------------ This issue exists because Photo Gallery lacks protection against Cross-Site Request Forgery attacks. Due to this, it is possible to delete images from an existing gallery. In order to exploit this issue, the attacker has to lure/force a victim into opening a malicious website/link. ------------------------------------------------------------------------ Proof of concept ------------------------------------------------------------------------ ------------------------------------------------------------------------ References ------------------------------------------------------------------------ [1] https://sumofpwn.nl/advisory/2016/cross_site_request_forgery_in_photo_gallery_wordpress_plugin_allows_deleting_of_images.html [2] https://wordpress.org/plugins/gallery-by-supsystic/ [3] https://downloads.wordpress.org/plugin/gallery-by-supsystic.zip