WordPress Nifty Newsletters plugin <= 4.0.23 - Cross-Site Request Forgery (CSRF) vulnerability leading to Stored Cross-Site Scripting (XSS)

Cross-Site Request Forgery CSRF vulnerability leading to Stored Cross-Site Scripting XSS discovered by Kohei Hino Cryptography Laboratory - Tokyo Denki University in WordPress Nifty Newsletters plugin versions = 4.0.23. Solution This plugin has been closed as of July 29, 2021 and is not available...