The Email Subscribers by Icegram Express – Email Marketing, Newsletters, Automation for WordPress & WooCommerce plugin for WordPress is vulnerable to time-based SQL Injection via the db parameter in all versions up to, and including, 5.7.25 due to insufficient escaping on the user supplied parameter and lack of sufficient preparation on the existing SQL query. This makes it possible for unauthenticated attackers to append additional SQL queries into already existing queries that can be used to extract sensitive information from the database.

Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection') vulnerability in Icegram Email Subscribers & Newsletters allows SQL Injection.This issue affects Email Subscribers & Newsletters: from n/a through 5.7.25.

Server-Side Request Forgery (SSRF) vulnerability in Blossom Themes BlossomThemes Email Newsletter.This issue affects BlossomThemes Email Newsletter: from n/a through 2.2.6.

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

The ConvertKit – Email Newsletter, Email Marketing, Subscribers and Landing Pages plugin for WordPress is vulnerable to unauthorized modification of data due to a missing capability check on the tag_subscriber function in all versions up to, and including, 2.4.9. This makes it possible for unauthenticated attackers to subscribe users to tags. Financial damages may occur to site owners if their API quota is exceeded.

The ConvertKit – Email Newsletter, Email Marketing, Subscribers and Landing Pages plugin for WordPress is vulnerable to unauthorized modification of data due to a missing capability check on the tag_subscriber function in all versions up to, and including, 2.4.9. This makes it possible for unauthenticated attackers to subscribe users to tags. Financial damages may occur to site owners if their API quota is exceeded.

Missing Authorization vulnerability in SendPress SendPress Newsletters.This issue affects SendPress Newsletters: from n/a through 1.23.11.6.

The Newsletter - API v1 and v2 addon plugin for WordPress is vulnerable to unauthorized subscribers management due to PHP type juggling issue on the check_api_key function in all versions up to, and including, 2.4.5. This makes it possible for unauthenticated attackers to list, create or delete newsletter subscribers. This issue affects only sites running the PHP version below 8.0

Missing Authorization vulnerability in Email Subscribers & Newsletters.This issue affects Email Subscribers & Newsletters: from n/a through 5.7.13.

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.