The Freemius SDK, as used by hundreds of WordPress plugin and theme developers, was vulnerable to Cross-Site Request Forgery and Information disclosure due to missing capability checks and nonce protection on the _get_debug_log, _get_db_option, and the _set_db_option functions in versions up to, and including 2.4.2. Any WordPress plugin or theme running a version of Freemius less than 2.4.3 is vulnerable.

Exposure of Sensitive Information to an Unauthorized Actor vulnerability in David Maucher Send Users Email allows Accessing Functionality Not Properly Constrained by ACLs.This issue affects Send Users Email: from n/a through 1.5.1.

Exposure of Sensitive Information to an Unauthorized Actor vulnerability in Suman Bhattarai Send Users Email.This issue affects Send Users Email: from n/a through 1.4.3.