Is Smart Forms safe? Known vulnerabilities and latest version

The Smart Forms – when you need more than just a contact form plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'formString' parameter in all versions up to, and including, 2.6.104 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 nonce check protecting the rednao_smart_forms_save_form_values AJAX handler is only enforced when the smart_forms_block_anonymous_submissions option is enabled, meaning default installations require no authentication or nonce verification whatsoever to submit and store malicious payloads.

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in EDGARROJAS Smart Forms smart-forms allows DOM-Based XSS.This issue affects Smart Forms: from n/a through 2.6.104.

The Smart Forms plugin for WordPress is vulnerable to unauthorized access of data due to a missing capability check on the 'rednao_smart_forms_get_campaigns' AJAX action in all versions up to, and including, 2.6.99. This makes it possible for authenticated attackers, with Subscriber-level access and above, to retrieve donation campaign data including campaign IDs and names.

The Smart Forms – when you need more than just a contact form plugin for WordPress is vulnerable to Stored Cross-Site Scripting via admin settings in all versions up to, and including, 2.6.98 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with administrator-level permissions and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. This only affects multi-site installations and installations where unfiltered_html has been disabled.

Missing Authorization vulnerability in EDGARROJAS Smart Forms smart-forms allows Exploiting Incorrectly Configured Access Control Security Levels.This issue affects Smart Forms: from n/a through <= 2.6.84.

Missing Authorization vulnerability in RedNao Smart Forms.This issue affects Smart Forms: from n/a through 2.6.91.

The Smart Forms WordPress plugin before 2.6.96 does not sanitise and escape some of its settings, which could allow high privilege users such as admin to perform Stored Cross-Site Scripting attacks even when the unfiltered_html capability is disallowed (for example in multisite setup)

The Smart Forms WordPress plugin before 2.6.94 does not have CSRF checks in some places, which could allow attackers to make logged-in users perform unwanted actions via CSRF attacks, such as editing entries, and we consider it a medium risk.

The Smart Forms WordPress plugin before 2.6.94 does not have proper authorization in some actions, which could allow users with a role as low as a subscriber to call them and perform unauthorized actions

The Smart Forms WordPress plugin before 2.6.87 does not have authorisation in various AJAX actions, which could allow users with a role as low as subscriber to call them and perform unauthorised actions such as deleting entries. The plugin also lacks CSRF checks in some places which could allow attackers to make logged in users perform unwanted actions via CSRF attacks such as deleting entries.

The Smart Forms WordPress plugin before 2.6.71 does not have authorisation in its rednao_smart_forms_entries_list AJAX action, allowing any authenticated users, such as subscriber, to download arbitrary form's data, which could include sensitive information such as PII depending on the form.

Cross-site request forgery (CSRF) vulnerability in Smart Forms 2.6.15 and earlier allows remote attackers to hijack the authentication of administrators via a specially crafted page.