What’s Vulnerable › Vulnerabilities

CVE-2023-0385: Custom 404 Pro <= 3.7.1 - Cross-Site Request Forgery

• Severity: medium (CVSS 4.3 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.3% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2023-01-18 · updated 2026-06-17
• Weakness: CWE-352

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 products

• Kunal Nagar Custom 404 Pro: before 3.7.2 — fixed in 3.7.2

How to fix

Upgrade to a fixed version: Kunal Nagar Custom 404 Pro 3.7.2. Check the vendor advisory for mitigations.

References

• https://plugins.trac.wordpress.org/browser/custom-404-pro/tags/3.7.1/admin/AdminClass.php#L114
• https://www.wordfence.com/threat-intel/vulnerabilities/id/968920b9-febf-4d76-a16b-f27954cd72e5?source=cve
• https://plugins.trac.wordpress.org/browser/custom-404-pro/tags/3.7.1/admin/AdminClass.php#L114
• https://www.wordfence.com/threat-intel/vulnerabilities/id/968920b9-febf-4d76-a16b-f27954cd72e5

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