CVE-2026-66705 WordPress Facebook for WordPress plugin <= 5.2.1 - Cross Site Scripting (XSS) vulnerability

Unauthenticated Cross Site Scripting XSS in Facebook for WordPress = 5.2.1 versions...

CVE-2021-24217

The runaction function of the Facebook for WordPress plugin before 3.0.0 deserializes user supplied data making it possible for PHP objects to be supplied creating an Object Injection vulnerability. There was also a useable magic method in the plugin that could be used to achieve remote code...

CVE-2021-24218

The wpajaxsavefbesettings and wpajaxdeletefbesettings AJAX actions of the Facebook for WordPress plugin before 3.0.4 were vulnerable to CSRF due to a lack of nonce protection. The settings in the saveFbeSettings function had no sanitization allowing for script tags to be saved...

Cross site request forgery (csrf)

The wpajaxsavefbesettings and wpajaxdeletefbesettings AJAX actions of the Facebook for WordPress plugin before 3.0.4 were vulnerable to CSRF due to a lack of nonce protection. The settings in the saveFbeSettings function had no sanitization allowing for script tags to be saved...