Description A reverse proxy issue exists in FluxBB before 1.4.7 when FORUM_BEHIND_REVERSE_PROXY is enabled. Remediation References CVE-2011-3621 Related Vulnerabilities WordPress Plugin Paid Membership, Ecommerce, Registration Form, Login Form, User Profile & Restrict Content-ProfilePress Cross-Site Scripting (4.5.3) Apache Tomcat Data Processing Errors Vulnerability (CVE-2014-0227) WordPress Plugin LMS by LifterLMS-Online Course, Membership & Learning Management System for WordPress Arbitrary File Write (3.37.14) Joomla Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') Vulnerability (CVE-2020-35612) Moodle Incorrect Authorization Vulnerability (CVE-2021-20282) Severity Critical Classification CVE-2011-3621 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N Tags Missing Update Known Vulnerabilities