Formidable Forms WordPress plugin versions up to 6.35 are vulnerable to arbitrary plugin installation via the 'file_url' parameter due to insufficient URL validation and improper permission checks. Authenticated users with subscriber-level access or higher can exploit this vulnerability if the site uses the free version of the plugin (not Formidable Pro).
Formidable Forms WordPress plugin versions up to and including 6.33.1 are vulnerable to a stored cross-site scripting (XSS) flaw via the 'frm_user_id' parameter. This vulnerability allows unauthenticated attackers to inject malicious scripts that execute when users access affected pages. The issue arises from insufficient input sanitization and output escaping, enabling attackers to bypass filters by forging the frm_user_id to match an administrator's user ID. This causes the plugin's output filtering to preserve the malicious payload, which is then decoded and executed by admin JavaScript on page load.
The AWP Classifieds WordPress plugin up to version 4.4.5 contains an SQL Injection vulnerability via the 'regions' parameter array keys. This flaw allows unauthenticated attackers to inject additional SQL commands due to insufficient escaping and lack of proper query preparation. The vulnerability can lead to unauthorized extraction of sensitive database information. No official patch or remediation guidance is currently provided by the vendor. The vulnerability has a high severity score of 7.5 but no known exploits in the wild have been reported yet.
The Formidable Forms plugin for WordPress is vulnerable to an authorization bypass through user-controlled key in all versions up to, and including, 6.28. This is due to the `frm_strp_amount` AJAX handler (`update_intent_ajax`) overwriting the global `$_POST` data with attacker-controlled JSON input and then using those values to recalculate payment amounts via field shortcode resolution in `generate_false_entry()`. The handler relies on a nonce that is publicly exposed in the page's JavaScript (`frm_stripe_vars.nonce`), which provides CSRF protection but not authorization. This makes it possible for unauthenticated attackers to manipulate PaymentIntent amounts before payment completion on forms using dynamic pricing with field shortcodes, effectively paying a reduced amount for goods or services.
The Formidable Forms plugin for WordPress is vulnerable to a payment integrity bypass in all versions up to, and including, 6.28. This is due to the Stripe Link return handler (`handle_one_time_stripe_link_return_url`) marking payment records as complete based solely on the Stripe PaymentIntent status without comparing the intent's charged amount against the expected payment amount, and the `verify_intent()` function validating only client secret ownership without binding intents to specific forms or actions. This makes it possible for unauthenticated attackers to reuse a PaymentIntent from a completed low-value payment to mark a high-value payment as complete, effectively bypassing payment for goods or services.
The Business Directory Plugin for WordPress is vulnerable to authorization bypass due to a missing authorization check in all versions up to, and including, 6.4.20. This makes it possible for unauthenticated attackers to modify arbitrary listings, including changing titles, content, and email addresses, by directly referencing the listing ID in crafted requests to the wpbdp_ajax AJAX action.
The Business Directory Plugin – Easy Listing Directories for WordPress plugin for WordPress is vulnerable to time-based SQL Injection via the 'payment' parameter in all versions up to, and including, 6.4.2 due to insufficient escaping on the user supplied parameter and lack of sufficient preparation on the existing SQL query. This makes it possible for unauthenticated attackers to append additional SQL queries into already existing queries that can be used to extract sensitive information from the database.
The Business Directory Plugin – Easy Listing Directories for WordPress plugin for WordPress is vulnerable to Insecure Direct Object Reference in all versions up to, and including, 6.4.14 via the 'ajax_listing_submit_image_upload' function due to missing validation on a user controlled key. This makes it possible for unauthenticated attackers to add arbitrary images to listings.
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 Formidable Forms – Contact Form Plugin, Survey, Quiz, Payment, Calculator Form & Custom Form Builder plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the ‘html’ parameter in all versions up to, and including, 6.11.1 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with form editing permissions and Subscriber-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.
The Business Directory Plugin – Easy Listing Directories for WordPress plugin for WordPress is vulnerable to time-based SQL Injection via the ‘listingfields’ parameter in all versions up to, and including, 6.4.2 due to insufficient escaping on the user supplied parameter and lack of sufficient preparation on the existing SQL query. This makes it possible for unauthenticated attackers to append additional SQL queries into already existing queries that can be used to extract sensitive information from the database.