The Message Filter for Contact Form 7 plugin for WordPress is vulnerable to unauthorized modification of data due to a missing capability check on the updateFilter() and deleteFilter() functions in all versions up to, and including, 1.6.3. This makes it possible for authenticated attackers, with subscriber-level access and above, to update and delete filters.

The Contact Form Builder by vcita plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the plugin's livesite-pay shortcode in all versions up to, and including, 4.10.4 due to insufficient input sanitization and output escaping on user supplied attributes. This makes it possible for authenticated attackers, with contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.

Multiple plugins for WordPress are vulnerable to Stored Cross-Site Scripting via the plugin's bundled FancyBox JavaScript library (versions 1.3.4 to 3.5.7) in various versions due to insufficient input sanitization and output escaping on user supplied attributes. This makes it possible for authenticated attackers, with contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.

The Contact Form, Survey & Form Builder – MightyForms plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the plugin's 'mightyforms' shortcode in all versions up to, and including, 1.3.9 due to insufficient input sanitization and output escaping on user supplied attributes. This makes it possible for authenticated attackers, with contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.

The Interactive Contact Form and Multi Step Form Builder with Drag & Drop Editor – Funnelforms Free plugin for WordPress is vulnerable to PHP Object Injection in all versions up to, and including, 3.7.4.1 via deserialization of untrusted input. This makes it possible for authenticated attackers, with Contributor-level access and above, to inject a PHP Object. No known POP chain is present in the vulnerable software. If a POP chain is present via an additional plugin or theme installed on the target system, it could allow the attacker to delete arbitrary files, retrieve sensitive data, or execute code.

The Formidable Forms – Contact Form Plugin, Survey, Quiz, Payment, Calculator Form & Custom Form Builder plugin for WordPress is vulnerable to POST-Based Reflected Cross-Site Scripting via the Custom HTML Form parameters in all versions up to, and including, 6.16.1.2 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that execute if they can successfully trick a user into performing an action such as clicking on a link.

The Contact Form 7 Email Add on plugin for WordPress is vulnerable to Local File Inclusion in all versions up to, and including, 1.9 via the cf7_email_add_on_add_admin_template() function. This makes it possible for authenticated attackers, with Contributor-level access and above, to include and execute arbitrary PHP files on the server, allowing the execution of any PHP code in those files. This can be used to bypass access controls, obtain sensitive data, or achieve code execution in cases where php files can be uploaded and included.

The The WPB Popup for Contact Form 7 – Showing The Contact Form 7 Popup on Button Click – CF7 Popup plugin for WordPress is vulnerable to arbitrary shortcode execution via wpb_pcf_fire_contact_form AJAX action in all versions up to, and including, 1.7.5. This is due to the software allowing users to execute an action that does not properly validate a value before running do_shortcode. This makes it possible for unauthenticated attackers to execute arbitrary shortcodes.

The SimpleForm Contact Form Submissions plugin for WordPress is vulnerable to Reflected Cross-Site Scripting due to the use of add_query_arg & remove_query_arg without appropriate escaping on the URL in all versions up to, and including, 2.1.0. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that execute if they can successfully trick a user into performing an action such as clicking on a link.

The SimpleForm – Contact form made simple plugin for WordPress is vulnerable to Reflected Cross-Site Scripting due to the use of add_query_arg & remove_query_arg without appropriate escaping on the URL in all versions up to, and including, 2.2.0. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that execute if they can successfully trick a user into performing an action such as clicking on a link.