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.

The WP Mail SMTP plugin for WordPress is vulnerable to information exposure in all versions up to, and including, 4.0.1. This is due to plugin providing the SMTP password in the SMTP Password field when viewing the settings. This makes it possible for authenticated attackers, with administrative-level access and above, to view the SMTP password for the supplied server. Although this would not be useful for attackers in most cases, if an administrator account becomes compromised this could be useful information to an attacker in a limited environment.

Unrestricted Upload of File with Dangerous Type vulnerability in WPVibes WP Mail Log.This issue affects WP Mail Log: from n/a through 1.1.2.

The WP Mail Log WordPress plugin before 1.1.3 does not properly sanitise and escape a parameter before using it in a SQL statement, leading to a SQL injection exploitable by users with a role as low as Contributor.

The WP Mail Log WordPress plugin before 1.1.3 does not properly validate file extensions uploading files to attach to emails, allowing attackers to upload PHP files, leading to remote code execution.

The WP Mail Log WordPress plugin before 1.1.3 does not properly validate file path parameters when attaching files to emails, leading to local file inclusion, and allowing an attacker to leak the contents of arbitrary files.

The WP Mail Log WordPress plugin before 1.1.3 does not properly sanitise and escape a parameter before using it in a SQL statement, leading to a SQL injection exploitable by users with a role as low as Contributor.

The WP Mail Log WordPress plugin before 1.1.3 does not correctly authorize its REST API endpoints, allowing users with the Contributor role to view and delete data that should only be accessible to Admin users.

The WP Mail Log plugin for WordPress is vulnerable to Stored Cross-Site Scripting via email contents in versions up to, and including, 1.1.1 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.

The WP Mail Logging plugin for WordPress is vulnerable to Stored Cross-Site Scripting via email contents in versions up to, and including, 1.11.1 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. Note: An incomplete fix was released in 1.11.1.