Is WPForms safe? Known vulnerabilities and latest version

The WPForms – AI Form Builder for WordPress – Contact Forms, Payment Forms, Survey Form, Quiz & More plugin for WordPress is vulnerable to Reflected Cross-Site Scripting via the 'attacker-chosen key referenced by the smart tag (e.g. "x")' parameter in all versions up to, and including, 2.0.2.1 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. Exploitation requires that a site administrator has previously saved a form whose description embeds a {query_var} Smart Tag inside an iframe srcdoc attribute and has enabled Show Description on a public-facing page.

The WPForms – AI Form Builder for WordPress – Contact Forms, Payment Forms, Survey Form, Quiz & More plugin for WordPress is vulnerable to Reflected Cross-Site Scripting via 'page_title' POST Parameter via {page_title} Smart Tag in all versions up to, and including, 2.0.2 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. This is only exploitable on forms whose admin-authored confirmation message places the {page_title} Smart Tag inside an HTML attribute context.

The WPForms – AI Form Builder for WordPress – Contact Forms, Payment Forms, Survey Form, Quiz & More plugin for WordPress is vulnerable to Stored Cross-Site Scripting via OptinMonster Integration data-sitekey Attribute in Post Content in all versions up to, and including, 2.0.0.1 due to insufficient input sanitization and output escaping. 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. Exploitation requires the OptinMonster plugin to be installed and configured with an active inline campaign that outputs matching #om-{id} markup on the target page, as the WPForms handler only fires when OptinMonster emits its 'om.Campaign.load' event.

The WPForms – Easy Form Builder for WordPress – Contact Forms, Payment Forms, Surveys, & More plugin for WordPress is vulnerable to Improper Neutralization of CRLF Sequences ('CRLF Injection') in all versions up to, and including, 1.10.2 This is due to `get_reply_to_address()` processing the Reply-To display name through smart-tag expansion with context `'notification'` instead of `'notification-reply-to'`, which bypasses email-address validation while `wpforms_sanitize_textarea_field()` intentionally preserves CR/LF characters that are never stripped before the display name is concatenated into the raw `Reply-To:` mail header string. This makes it possible for unauthenticated attackers to inject arbitrary additional email headers — such as `Bcc:` — into outgoing notification emails, silently blind-copying all notification email copies to an attacker-controlled address. Exploitation requires that a form notification is configured to use a Paragraph Text (textarea) field as the Reply-To display name via a Smart Tag.

Unauthenticated Broken Access Control in Contact Form by WPForms <= 1.10.0.4 versions.

The WPForms – Easy Form Builder for WordPress – Contact Forms, Payment Forms, Surveys, & More plugin for WordPress is vulnerable to Insufficient Verification of Data Authenticity in versions up to and including 1.10.0.1. This is due to the PayPal Commerce webhook endpoint processing unauthenticated JSON webhook payloads without verifying that the request originated from PayPal using the required HMAC-SHA256 webhook signature, and only checking whether the supplied event_type is whitelisted before dispatching the attacker-controlled resource data to handlers that update payment records. This makes it possible for unauthenticated attackers who know a valid PayPal subscription_id to forge PayPal webhook events and modify subscription payment records, such as reactivating a cancelled or suspended subscription by setting its subscription_status to active.

Cross-Site Request Forgery (CSRF) vulnerability in Syed Balkhi Contact Form by WPForms wpforms-lite allows Cross Site Request Forgery.This issue affects Contact Form by WPForms: from n/a through <= 1.10.0.2.

Insertion of Sensitive Information Into Sent Data vulnerability in Syed Balkhi Contact Form by WPForms wpforms-lite allows Retrieve Embedded Sensitive Data.This issue affects Contact Form by WPForms: from n/a through <= 1.9.8.7.

Missing Authorization vulnerability in Syed Balkhi Contact Form by WPForms wpforms-lite allows Exploiting Incorrectly Configured Access Control Security Levels.This issue affects Contact Form by WPForms: from n/a through <= 1.9.9.3.

WPForms 1.7.8 contains a cross-site scripting vulnerability in the slider import search feature and tab parameter. Attackers can inject malicious scripts through the ListTable.php endpoint to execute arbitrary JavaScript in victim's browser.

The WPForms – Easy Form Builder for WordPress – Contact Forms, Payment Forms, Surveys, & More plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the start_timestamp parameter in all versions up to, and including, 1.9.5 due to insufficient input sanitization and output escaping. 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 WPForms – Easy Form Builder for WordPress – Contact Forms, Payment Forms, Surveys, & More plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the ‘fieldHTML’ parameter in all versions up to, and including, 1.9.3.1 due to insufficient input sanitization and output escaping. 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.

Missing Authorization vulnerability in Syed Balkhi Contact Form by WPForms wpforms-lite allows Exploiting Incorrectly Configured Access Control Security Levels.This issue affects Contact Form by WPForms: from n/a through <= 1.9.2.2.

The WPForms plugin for WordPress is vulnerable to unauthorized modification of data due to a missing capability check on the 'wpforms_is_admin_page' function in versions starting from 1.8.4 up to, and including, 1.9.2.1. This makes it possible for authenticated attackers, with Subscriber-level access and above, to refund payments and cancel subscriptions.

The WPForms – Easy Form Builder for WordPress – Contact Forms, Payment Forms, Surveys, & More plugin for WordPress is vulnerable to Cross-Site Request Forgery in all versions up to, and including, 1.9.1.6. This is due to missing or incorrect nonce validation on the process_admin_ui function. This makes it possible for unauthenticated attackers to delete WPForm logs via a forged request granted they can trick a site administrator into performing an action such as clicking on a link.

The Contact Form by WPForms – Drag & Drop Form Builder for WordPress plugin for WordPress is vulnerable to price manipulation in versions up to, and including, 1.8.7.2. This is due to a lack of controls on several product parameters. This makes it possible for unauthenticated attackers to manipulate prices, product information, and quantities for purchases made via the Stripe payment integration.

A stored cross-site scripting (XSS) vulnerability exists in the WPForms Contact Form (aka wpforms-lite) plugin before 1.5.9 for WordPress.