Newsletters <= 4.9.9.2 - Authenticated Privilege Escalation

The Newsletters plugin for WordPress is vulnerable to privilege escalation in all versions up to, and including, 4.9.9.2. This is due to the plugin not restricting what user meta can be updated as screen options. This makes it possible for authenticated attackers, with subscriber-level access and above, to escalate their privileges to that of an administrator. Please note that this only affects users with access to edit/update screen options, which means an administrator would need to grant lower privilege users with access to the Sent & Draft Emails page of the plugin in order for this to be exploited.

WordPress Newsletters plugin <= 4.9.7 - Cross Site Request Forgery (CSRF) vulnerability

Cross Site Request Forgery (CSRF) vulnerability in Tribulant Newsletters.This issue affects Newsletters: from n/a through 4.9.7.

Newsletter Lite < 4.9.3 - Admin+ Command Injection

The Newsletters WordPress plugin before 4.9.3 does not properly escape user-controlled parameters when they are appended to SQL queries and shell commands, which could enable an administrator to run arbitrary commands on the server.

WordPress Newsletters plugin <= 4.9.5 - Reflected Cross Site Scripting (XSS) vulnerability

Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting') vulnerability in Tribulant Newsletters allows Reflected XSS.This issue affects Newsletters: from n/a through 4.9.5.

wp-admin/admin-ajax.php?action=newsletters_exportmultiple in the Tribulant Newsletters plugin before 4.6.19 for WordPress allows directory traversal with resultant remote PHP code execution via the subscribers[1][1] parameter in conjunction with an exportfile=../ value.

The Tribulant Newsletters plugin before 4.6.19 for WordPress allows XSS via the wp-admin/admin-ajax.php?action=newsletters_load_new_editor contentarea parameter.

The newsletters-lite plugin before 4.6.8.6 for WordPress has PHP object injection.