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Lead Form Builder & Contact Form vulnerabilities

Lead Form Builder & Contact Form has 4 known vulnerabilities in this database. The most recent published record is dated 11 Mar 2026.

Known vulnerabilities
4
Active installs
8,000+
Latest version
2.2.6
Last updated
19 Sep 2026
Most recent
11 Mar 2026

Find it in your WordPress dashboard under Plugins. Severity is based on the CVSS score published with the CVE where one is available.

VulnerabilitySeverityAffectedFixPublished
Cross-site scripting (XSS)
CVE-2026-1454
High 7.2Up to 2.0.1Fixed in a later version (latest 2.2.6)11 Mar 2026
Remote code execution
CVE-2024-4261
Medium 5.4Up to 1.9.1Fixed in a later version (latest 2.2.6)22 May 2024
Cross-site request forgery (CSRF)
CVE-2024-1415
Medium 4.3Up to 1.8.9Fixed in a later version (latest 2.2.6)2 May 2024
Broken access control
CVE-2024-1416
Medium 4.3Up to 1.8.9Fixed in a later version (latest 2.2.6)2 May 2024
Read the published descriptions
CVE-2026-1454, 11 Mar 2026
The Responsive Contact Form Builder & Lead Generation Plugin plugin for WordPress is vulnerable to Stored Cross-Site Scripting in all versions up to, and including, 2.0.1 via form field submissions. This is due to insufficient input sanitization in the lfb_lead_sanitize() function which omits certain field types from its sanitization whitelist, combined with an overly permissive wp_kses() filter at output time that allows onclick attributes on anchor tags. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that will execute whenever an administrator views the lead entries in the WordPress dashboard. CVE record
CVE-2024-4261, 22 May 2024
The Responsive Contact Form Builder & Lead Generation Plugin plugin for WordPress is vulnerable to arbitrary shortcode execution in all versions up to, and including, 1.9.1. This is due to the software allowing users to execute an action that does not properly validate a value before running do_shortcode. This makes it possible for authenticated attackers, with subscriber-level access and above, to execute arbitrary shortcodes. CVE record
CVE-2024-1415, 2 May 2024
The Responsive Contact Form Builder & Lead Generation Plugin plugin for WordPress is vulnerable to Cross-Site Request Forgery in all versions up to, and including, 1.8.9. This is due to missing or incorrect nonce validation on several functions. This makes it possible for unauthenticated attackers to invoke those functions via a forged request granted they can trick a site administrator into performing an action such as clicking on a link. These actions may result in form deletion, and lead signup as well as file upload. CVE record
CVE-2024-1416, 2 May 2024
The Responsive Contact Form Builder & Lead Generation Plugin plugin for WordPress is vulnerable to unauthorized access to functionality due to a missing capability check on several functions in all versions up to, and including, 1.8.9. This makes it possible for unauthenticated attackers to invoke those functions. CVE record

What to do if you run Lead Form Builder & Contact Form

If you run Lead Form Builder & Contact Form, open WordPress and check the installed version in Plugins. Compare it with the affected versions in the vulnerability record. If a fixed version is available, take a current backup and update to that version or the latest supported release.

If no fixed version exists, consider disabling and removing the plugin or replacing it with a maintained alternative. After dealing with the affected software, check administrator users, unexpected file changes, redirects, unfamiliar pages and security logs for signs that the site may already have been altered.

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