Vulnerabilities and security researches forcustom-404-pro custom-404-pro

Nov 10, 2025

CVE, Research URL: CVE-2025-9947
Home page URL: Security reports for Custom 404 Pro
Application: Custom 404 Pro
Date: Oct 11, 2025
Research Description: 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 attackers, with Administrator-level access and above, to append additional SQL queries into already existing queries that can be used to extract sensitive information from the database.
Affected versions: max 3.12.0.
Status: vulnerable

Aug 04, 2024

CVE, Research URL: CVE-2024-39646
Home page URL: Security reports for Custom 404 Pro
Application: Custom 404 Pro
Date: Aug 02, 2024
Research Description: 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.
Affected versions: max 3.11.2.
Status: vulnerable

Jun 06, 2024

CVE, Research URL: CVE-2019-14789
Home page URL: Security reports for Custom 404 Pro
Application: Custom 404 Pro
Date: Aug 15, 2019
Research Description: The Custom 404 Pro plugin 3.2.8 for WordPress has XSS via the wp-admin/admin.php?page=c4p-main page parameter.
Affected versions: max 3.7.1.
Status: vulnerable

CVE, Research URL: CVE-2019-15838
Home page URL: Security reports for Custom 404 Pro
Application: Custom 404 Pro
Date: Aug 30, 2019
Research Description: The custom-404-pro plugin before 3.2.8 for WordPress has reflected XSS, a different vulnerability than CVE-2019-14789.
Affected versions: max 3.2.8.
Status: vulnerable

CVE, Research URL: CVE-2023-0385
Home page URL: Security reports for Custom 404 Pro
Application: Custom 404 Pro
Date: Jan 18, 2023
Research Description: 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 they can trick a site administrator into performing an action such as clicking on a link.
Affected versions: max 3.7.2.
Status: vulnerable

CVE, Research URL: CVE-2023-32740
Home page URL: Security reports for Custom 404 Pro
Application: Custom 404 Pro
Date: Aug 30, 2023
Research Description: Unauth. Reflected Cross-Site Scripting (XSS) vulnerability in Kunal Nagar Custom 404 Pro plugin <= 3.8.1 versions.
Affected versions: max 3.8.2.
Status: vulnerable

CVE, Research URL: CVE-2023-51540
Home page URL: Security reports for Custom 404 Pro
Application: Custom 404 Pro
Date: Feb 01, 2024
Research Description: 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.
Affected versions: max 3.10.1.
Status: vulnerable

CVE, Research URL: CVE-2023-2032
Home page URL: Security reports for Custom 404 Pro
Application: Custom 404 Pro
Date: Jun 27, 2023
Research Description: The Custom 404 Pro WordPress plugin before 3.8.1 does not properly sanitize database inputs, leading to multiple SQL Injection vulnerabilities.
Affected versions: max 3.7.3.
Status: vulnerable

CVE, Research URL: CVE-2022-47605
Home page URL: Security reports for Custom 404 Pro
Application: Custom 404 Pro
Date: Apr 12, 2023
Research Description: Auth. SQL Injection') vulnerability in Kunal Nagar Custom 404 Pro plugin <= 3.7.0 versions.
Affected versions: max 3.7.3.
Status: vulnerable

CVE, Research URL: CVE-2023-2023
Home page URL: Security reports for Custom 404 Pro
Application: Custom 404 Pro
Date: May 30, 2023
Research Description: 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.
Affected versions: max 3.7.3.
Status: vulnerable