plugin
27 known security issues reported for the Custom 404 Pro WordPress plugin. Most recent disclosed Dec 22, 2025.
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Scan your site free[en] Cross-Site Request Forgery (CSRF) vulnerability in Kunal Nagar Custom 404 Pro allows Cross Site Request Forgery.This issue affects Custom 404 Pro: from n/a through 3.12.0.
The Custom 404 Pro plugin for WordPress is vulnerable to time-based SQL Injection via the ‘path’ parameter in all versions up to, and including, 3.12.0 due to insufficient escaping on the user supplied parameter and lack of sufficient preparation on the existing SQL query. This makes it possible for authenticated atta...
The Custom 404 Pro plugin for WordPress is vulnerable to Cross-Site Request Forgery in versions up to, and including, 3.12.0. This is due to missing or incorrect nonce validation on a function. This makes it possible for unauthenticated attackers to perform an unauthorized action via a forged request granted they can t...
The Custom 404 Pro plugin for WordPress is vulnerable to Reflected Cross-Site Scripting via the 'c4pmessageType' and 'c4pmessage' parameters in versions up to, and including, 3.11.1 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web s...
[en] Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting') vulnerability in Kunal Nagar Custom 404 Pro allows Reflected XSS.This issue affects Custom 404 Pro: from n/a through 3.11.1.
[en] Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Kunal Nagar Custom 404 Pro allows Stored XSS.This issue affects Custom 404 Pro: from n/a through 3.10.0.
The Custom 404 Pro plugin for WordPress is vulnerable to Stored Cross-Site Scripting via several logged parameters in all versions up to, and including, 3.10.0 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that w...
[en] Unauth. Reflected Cross-Site Scripting (XSS) vulnerability in Kunal Nagar Custom 404 Pro plugin <= 3.8.1 versions.
[en] The Custom 404 Pro WordPress plugin before 3.8.1 does not properly sanitize database inputs, leading to multiple SQL Injection vulnerabilities.
[en] The Custom 404 Pro WordPress plugin before 3.7.3 does not escape some URLs before outputting them in attributes, leading to Reflected Cross-Site Scripting.
The Custom 404 Pro plugin for WordPress is vulnerable to Reflected Cross-Site Scripting via the ‘page’ parameter in versions up to, and including, 3.8.1 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that execute...
The Custom 404 Pro plugin for WordPress is vulnerable to Reflected Cross-Site Scripting via the ‘s’ parameter in versions up to, and including, 3.7.2 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...
The Custom 404 Pro plugin for WordPress is vulnerable to blind SQL Injection via multiple parameters including the 'User-Agent' and 'Referer' Headers in versions up to, and including, 3.7.2 due to insufficient escaping on the user supplied parameters and lack of sufficient preparation on the existing SQL query. This m...
The Custom 404 Pro plugin for WordPress is vulnerable to SQL Injection via the 's' parameter in versions up to, and including, 3.8.0 due to insufficient escaping on the user supplied parameters and lack of sufficient preparation on the existing SQL query. This makes it possible for unauthenticated attackers to append...
The Custom 404 Pro plugin for WordPress is vulnerable to blind SQL Injection via multiple parameters including the 'User-Agent' and 'Referer' Headers in versions up to, and including, 3.7.2 due to insufficient escaping on the user supplied parameters and lack of sufficient preparation on the existing SQL query. This m...
Update the WordPress Custom 404 Pro plugin to the latest available version (at least 3.7.3). An unknown person discovered and reported this SQL Injection vulnerability in WordPress Custom 404 Pro Plugin. This could allow a malicious actor to directly interact with your database, including but not limited to stealing in...
[en] Auth. SQL Injection') vulnerability in Kunal Nagar Custom 404 Pro plugin <= 3.7.0 versions.
The Custom 404 Pro plugin for WordPress is vulnerable to Cross-Site Request Forgery in versions up to, and including, 3.7.1. This is due to missing or incorrect nonce validation on the custom_404_pro_admin_init function. This makes it possible for unauthenticated attackers to delete logs, via forged request granted the...
[en] The Custom 404 Pro plugin for WordPress is vulnerable to Cross-Site Request Forgery in versions up to, and including, 3.7.1. This is due to missing or incorrect nonce validation on the custom_404_pro_admin_init function. This makes it possible for unauthenticated attackers to delete logs, via forged request grante...
The Custom 404 Pro plugin for WordPress is vulnerable to blind SQL Injection via the ‘path’ parameter in versions up to, and including, 3.7.0 due to insufficient escaping on the user supplied parameter and lack of sufficient preparation on the existing SQL query. This makes it possible for authenticated attackers with...
The Custom 404 Pro plugin for WordPress is vulnerable to blind SQL Injection via the ‘path’ parameter in versions up to, and including, 3.7.0 due to insufficient escaping on the user supplied parameter and lack of sufficient preparation on the existing SQL query. This makes it possible for authenticated attackers with...
[en] The custom-404-pro plugin before 3.2.8 for WordPress has reflected XSS, a different vulnerability than CVE-2019-14789.
[en] The Custom 404 Pro plugin 3.2.8 for WordPress has XSS via the wp-admin/admin.php?page=c4p-main page parameter.
The Custom 404 Pro plugin 3.2.8 for WordPress has XSS via the wp-admin/admin.php?page=c4p-main page parameter.
Authenticated Reflected Cross-Site Scripting (XSS) vulnerability found in WordPress Custom 404 Pro plugin (versions <= 3.2.7).
The custom-404-pro plugin before 3.2.8 for WordPress has reflected XSS, a different vulnerability than CVE-2019-14789.
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