The W3 Total Cache plugin before 0.9.4.1 for WordPress does not properly handle empty nonces, which allows remote attackers to conduct cross-site request forgery (CSRF) attacks and hijack the authentication of administrators for requests that change the mobile site redirect URI via the mobile_groups[*][redirect] parameter and an empty _wpnonce parameter in the w3tc_mobile page to wp-admin/admin.php.
mazinahmed1.blogspot.com/2014/12/w3-total-caches-w3totalfail.html
packetstormsecurity.com/files/129512/W3-Total-Cache-0.9.4-Cross-Site-Request-Forgery.html
seclists.org/fulldisclosure/2014/Dec/67
secunia.com/advisories/61562
www.securityfocus.com/archive/1/534250/100/0/threaded
exchange.xforce.ibmcloud.com/vulnerabilities/99352
github.com/wp-plugins/w3-total-cache/commit/9a1cc9f70558282e135eb3120d271448c75b28dd#diff-86a10b31ab115483fe8111bedac14d15
wordpress.org/plugins/w3-total-cache/changelog/