plugin
26 known security issues reported for the Contact Form By Supsystic WordPress plugin. Most recent disclosed Aug 18, 2026.
Running Contact Form By Supsystic on your site? Check whether your installed version is affected.
Scan your site freeThe Contact Form by Supsystic plugin for WordPress is vulnerable to Stored Cross-Site Scripting in all versions up to 1.10.0. This is 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 use...
The Contact Form by Supsystic plugin for WordPress is vulnerable to Payment Bypass in all versions up to 1.10.0 (exclusive). This makes it possible for unauthenticated attackers to bypass payments.
The Contact Form by Supsystic plugin for WordPress is vulnerable to Server-Side Template Injection (SSTI) leading to Remote Code Execution (RCE) in all versions up to, and including, 1.7.36. This is due to the plugin using the Twig `Twig_Loader_String` template engine without sandboxing, combined with the `cfsPreFill`...
[en] Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in supsystic Contact Form by Supsystic contact-form-by-supsystic allows Reflected XSS.This issue affects Contact Form by Supsystic: from n/a through <= 1.7.35.
The Contact Form by Supsystic plugin for WordPress is vulnerable to Reflected Cross-Site Scripting in versions up to, and including, 1.7.36 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 s...
[en] The Contact Form by Supsystic plugin for WordPress is vulnerable to Cross-Site Request Forgery in all versions up to, and including, 1.7.29. This is due to missing or incorrect nonce validation on a saveAsCopy function. This makes it possible for unauthenticated attackers to update settings and inject malicious we...
The Contact Form by Supsystic plugin for WordPress is vulnerable to Cross-Site Request Forgery in all versions up to, and including, 1.7.29. This is due to missing or incorrect nonce validation on a saveAsCopy function. This makes it possible for unauthenticated attackers to update settings and inject malicious web scr...
[en] Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting') vulnerability in Supsystic Contact Form by Supsystic allows Stored XSS.This issue affects Contact Form by Supsystic: from n/a through 1.7.28.
[en] Improper Neutralization of Special Elements Used in a Template Engine vulnerability in Supsystic Contact Form by Supsystic allows Command Injection.This issue affects Contact Form by Supsystic: from n/a through 1.7.28.
The Contact Form by Supsystic plugin for WordPress is vulnerable to Stored Cross-Site Scripting in versions up to, and including, 1.7.28 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with administrator-level access and above, to inject arbitrary web scri...
The Contact Form by Supsystic plugin for WordPress is vulnerable to Remote Code Execution in all versions up to, and including, 1.7.28. This is due to the functionality being vulnerable to server-side template injection (SSTI). This makes it possible for authenticated attackers, with administrator-level access and abov...
[en] Cross-Site Request Forgery (CSRF) vulnerability in Supsystic Contact Form by Supsystic plugin <= 1.7.27 versions.
The Contact Form by Supsystic plugin for WordPress is vulnerable to Cross-Site Request Forgery in versions up to, and including, 1.7.27. This is due to missing nonce validation on an unknown function. This makes it possible for unauthenticated attackers to perform an unauthorized action via a forged request granted the...
The Contact Form by Supsystic plugin for WordPress is vulnerable to Cross-Site Request Forgery in versions up to, and including, 1.7.24. This is due to missing or incorrect nonce validation on the AJAX action handler. This makes it possible for unauthenticated attackers to execute AJAX actions via a forged request gran...
[en] The Contact Form by Supsystic plugin for WordPress is vulnerable to Cross-Site Request Forgery in versions up to, and including, 1.7.24. This is due to missing or incorrect nonce validation on the AJAX action handler. This makes it possible for unauthenticated attackers to execute AJAX actions via a forged request...
The Contact Form by Supsystic plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the fields label in versions before 1.7.20 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers with admin-level privileges to inject arbitrary web scripts in pag...
The Contact Form by Supsystic plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the fields label in versions before 1.7.20 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers with admin-level privileges to inject arbitrary web scripts in pag...
[en] The Contact Form by Supsystic WordPress plugin before 1.7.15 did not sanitise the tab parameter of its options page before outputting it in an attribute, leading to a reflected Cross-Site Scripting issue
The Contact Form by Supsystic WordPress plugin before 1.7.15 did not sanitise the tab parameter of its options page before outputting it in an attribute, leading to a reflected Cross-Site Scripting issue
The Contact Form by Supsystic plugin for WordPress is vulnerable to generic SQL Injection via the 'sidx' and 'sord' parameters in versions up to, and including, 1.7.10 due to insufficient escaping on the user-supplied parameter and lack of sufficient preparation on the existing SQL query. This makes it possible for au...
The Contact Form by Supsystic plugin for WordPress is vulnerable to generic SQL Injection via the 'sidx' and 'sord' parameters in versions up to, and including, 1.7.10 due to insufficient escaping on the user-supplied parameter and lack of sufficient preparation on the existing SQL query. This makes it possible for au...
Stored Cross-Site Scripting (XSS) vulnerability found by Erik David Martin in WordPress Contact Form by Supsystic plugin (versions <= 1.7.5).
SQL injection (SQLi) vulnerability found by Erik David Martin in WordPress Contact Form by Supsystic plugin (versions <= 1.7.5).
The label field (Form name) was vulnerable to stored Cross-Site Scripting issue.
The GET parameters sidx and sord were used in a SQL statement without being sanitised when searching for Forms in the dashboard, leading to an authenticated SQL Injection issues.
The plugin does not sanitise and escape fields label, which could allow high privilege users to perform Cross-Site Scripting attacks even when the unfiltered_html is disallowed
Run a free security scan to detect vulnerable plugins and themes, exposed files, and malware — no plugin install, no signup.
Scan your site free