WordPress Sites Affected by Three Plugins With The Same Vulnerability

On November 5, 2021 the Wordfence Threat Intelligence team initiated the responsible disclosure process for a vulnerability we discovered in “Login/Signup Popup”, a WordPress plugin that is installed on over 20,000 sites. A few days later we discovered the same vulnerability present in two additional plugins developed by the same author: “Side Cart Woocommerce (Ajax)”,…

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