The Contact Form 7 Redirect & Thank You Page plugin for WordPress is vulnerable to Reflected Cross-Site Scripting via the 'tab' parameter in all versions up to, and including, 1.0.6 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 – PayPal & Stripe Add-on 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, 2.3.1. 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. This is only exploitable when the leave a review notice is present in the dashboard.

The Contact Form 7 – Dynamic Text Extension plugin for WordPress is vulnerable to Basic Information Disclosure in all versions up to, and including, 4.5 via the CF7_get_post_var shortcode. This makes it possible for authenticated attackers, with Contributor-level access and above, to extract the titles and text contents of private and password-protected posts, they do not own.

Missing Authorization vulnerability in Renzo Johnson Contact Form 7 Campaign Monitor Extension allows Accessing Functionality Not Properly Constrained by ACLs.This issue affects Contact Form 7 Campaign Monitor Extension: from n/a through 0.4.67.

Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting') vulnerability in Jules Colle Conditional Fields for Contact Form 7 allows Stored XSS.This issue affects Conditional Fields for Contact Form 7: from n/a through 2.4.15.

The Contact Form 7 + Telegram plugin for WordPress is vulnerable to unauthorized modification of data and loss of data due to a missing capability check on the 'wpcf7_Telegram::ajax' function in versions up to, and including, 0.8.5. This makes it possible for authenticated attackers, with subscriber-level access and above, to approve, pause and refuse subscriptions.

The Contact Form 7 – Repeatable Fields plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the plugin's field_group shortcode in all versions up to, and including, 2.0.1 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.

Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting') vulnerability in Scott Paterson Contact Form 7 – PayPal & Stripe Add-on allows Reflected XSS.This issue affects Contact Form 7 – PayPal & Stripe Add-on: from n/a through 2.3.

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 Multiline files upload for contact form 7 plugin for WordPress is vulnerable to unauthorized plugin deactivation due to a missing capability check on the mfcf7_zl_custom_handle_deactivation_plugin_form_submission() function in all versions up to, and including, 2.8.1. This makes it possible for authenticated attackers, with Subscriber-level access and above, to deactivate the plugin and send a custom reason from the site.