CWE-639

The Site Offline Or Coming Soon Or Maintenance Mode WordPress plugin before 1.5.3 prevents users from accessing a website but does not do so if the URL contained certain keywords. Adding those keywords to the URL’s query string would bypass the plugin’s main feature.

The WP-Polls WordPress plugin before 2.76.0 prioritizes getting a visitor’s IP from certain HTTP headers over PHP’s REMOTE_ADDR, which makes it possible to bypass IP-based limitations to vote in certain situations.

The YOP Poll WordPress plugin before 6.4.3 prioritizes getting a visitor’s IP from certain HTTP headers over PHP’s REMOTE_ADDR, which makes it possible to bypass IP-based limitations to vote in certain situations.

The Restricted Site Access WordPress plugin before 7.3.2 prioritizes getting a visitor’s IP from certain HTTP headers over PHP’s REMOTE_ADDR, which makes it possible to bypass IP-based limitations in certain situations.

The WP-EMail WordPress plugin before 2.69.0 prioritizes getting a visitor’s IP from certain HTTP headers over PHP’s REMOTE_ADDR, which makes it possible to bypass IP-based anti-spamming restrictions.

The WPQA Builder Plugin WordPress plugin before 5.2, used as a companion plugin for the Discy and Himer , does not validate that the message_id of the wpqa_message_view ajax action belongs to the requesting user, leading to any user being able to read messages for any other users via a Insecure Direct Object Reference (IDOR) vulnerability.