The POST SMTP Mailer plugin for WordPress is vulnerable to Cross-Site Request Forgery in versions up to, and including, 2.0.20. This is due to missing or incorrect nonce validation on the handleCsvExport() function. This makes it possible for unauthenticated attackers to trigger a CSV export via a forged request granted they can trick a site administrator into performing an action such as clicking on a link.
The Post SMTP plugin for WordPress is vulnerable to Stored Cross-Site Scripting via email contents in versions up to, and including, 2.5.7 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 Email Templates plugin for WordPress is vulnerable to HTML Injection in versions up to, and including, 1.3. This makes it possible for attackers to present phishing forms or conduct cross-site request forgery attacks against site administrators.
The WP Multi Store Locator WordPress plugin through 2.4 does not validate and escape some of its shortcode attributes before outputting them back in a page/post where the shortcode is embed, which could allow users with the contributor role and above to perform Stored Cross-Site Scripting attacks
The WP Contact Slider WordPress plugin before 2.4.8 does not sanitize and escape its settings, allowing high privilege users such as admin to perform cross-Site Scripting attacks even when the unfiltered_html capability is disallowed.
The Post SMTP Mailer/Email Log WordPress plugin before 2.1.7 does not have proper authorisation in some AJAX actions, which could allow high privilege users such as admin to perform blind SSRF on multisite installations for example.
The Post SMTP Mailer/Email Log WordPress plugin before 2.1.4 does not escape some of its settings before outputting them in the admins dashboard, allowing high privilege users to perform Cross-Site Scripting attacks against other users even when the unfiltered_html capability is disallowed.
The WP Contact Slider WordPress plugin before 2.4.7 does not sanitize and escape the Text to Display settings of sliders, which could allow high privileged users such as editor and above to perform Cross-Site Scripting attacks even when the unfiltered_html is disallowed
The New User Approve WordPress plugin before 2.4 does not have CSRF check in place when updating its settings and adding invitation codes, which could allow attackers to add invitation codes (for bypassing the provided restrictions) and to change plugin settings by tricking admin users into visiting specially crafted websites.