The FluentAuth WordPress plugin before 1.0.2 prioritizes getting a visitor's IP address from certain HTTP headers over PHP's REMOTE_ADDR, which makes it possible to bypass the IP-based blocks set by the plugin.
This attack-focused weakness is caused by incorrectly implemented authentication schemes that are subject to spoofing attacks.
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https://wpscan.com/vulnerability/62e3babc-00c6-4a35-972f-8f03ba70ba32 | exploit vdb entry third party advisory technical description |