The Calculated Fields Form plugin for WordPress is vulnerable to Denial of Service in all versions up to, and including, 5.2.63. This is due to unlimited height and width parameters for CAPTCHA images. This makes it possible for unauthenticated attackers to send multiple requests with large values, resulting in slowing server resources if the server does not mitigate Denial of Service attacks.

The Calculated Fields Form plugin for WordPress is vulnerable to HTML Injection in all versions up to, and including, 5.2.45. This is due to the plugin not properly neutralizing HTML elements from submitted forms. This makes it possible for unauthenticated attackers to inject arbitrary HTML that will render when the administrator views form submissions in their email.

Missing Authorization vulnerability in CodePeople Calculated Fields Form allows Functionality Misuse.This issue affects Calculated Fields Form: from n/a through 1.1.120.

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in CodePeople Calculated Fields Form allows Reflected XSS.This issue affects Calculated Fields Form: from n/a through 1.2.54.

The Calculated Fields Form plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the form page href parameter in all versions up to, and including, 5.1.56 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. Exploitation requires the professional version or higher.

The Calculated Fields Form plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the plugin's CP_CALCULATED_FIELDS shortcode in all versions up to, and including, 1.2.52 due to insufficient input sanitization and output escaping on user supplied 'location' attribute. This makes it possible for authenticated attackers with contributor-level and above permissions to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.

The Calculated Fields Form WordPress plugin before 1.1.151 does not sanitise and escape some of its form 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 Calculated Fields Form plugin for WordPress is vulnerable to Stored Cross-Site Scripting via admin settings in all versions up to, and including, 1.2.40 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.

URL Redirection to Untrusted Site ('Open Redirect') vulnerability in CodePeople Calculated Fields Form.This issue affects Calculated Fields Form: from n/a through 1.2.28.

The Calculated Fields Form plugin through 1.0.353 for WordPress suffers from multiple Stored XSS vulnerabilities present in the input forms. These can be exploited by an authenticated user.