WordPress Plugin Email Artillery (MASS EMAIL) Multiple Vulnerabilities - CVE-2021-24490

WordPress Plugin Email Artillery (MASS EMAIL) is prone to multiple vulnerabilities including cross-site scripting arbitrary file upload and SQL injection vulnerabilities. An attacker may leverage these issues to execute arbitrary script code in the browser of an unsuspecting user in the context of the affected site to steal cookie-based authentication credentials to upload arbitrary code and run it in the context of the webserver process which may facilitate unauthorized access or privilege escalation or to compromise the application access or modify data or to exploit vulnerabilities in the underlying database. WordPress Plugin Email Artillery (MASS EMAIL) version 4.1 is vulnerable prior versions may also be affected.