Custom 404 Error Page Security & Risk Analysis

wordpress.org/plugins/custom-404-error-page

Use any static page as the 404 error page.

2K active installs v0.2.6 PHP + WP 3.0+ Updated Oct 22, 2025
404customnot-foundpageseo
100
A · Safe
CVEs total0
Unpatched0
Last CVENever
Safety Verdict

Is Custom 404 Error Page Safe to Use in 2026?

Generally Safe

Score 100/100

Custom 404 Error Page has no known CVEs and is actively maintained. It's a solid choice for most WordPress installations.

No known CVEs Updated 5mo ago
Risk Assessment

The "custom-404-error-page" plugin version 0.2.6 exhibits a very strong security posture based on the provided static analysis. There are no identified AJAX handlers, REST API routes, shortcodes, or cron events, resulting in a zero attack surface and no entry points to analyze for vulnerabilities. The code itself also demonstrates excellent security practices, with no dangerous functions, all SQL queries using prepared statements, and all outputs properly escaped. File operations and external HTTP requests are also absent, further reducing potential risk vectors. The plugin also has no recorded vulnerability history, including CVEs, indicating a history of secure development and maintenance. This combination of minimal attack surface and robust code practices leads to a very low-risk assessment.

Vulnerabilities
None known

Custom 404 Error Page Security Vulnerabilities

No known vulnerabilities — this is a good sign.
Code Analysis
Analyzed Mar 16, 2026

Custom 404 Error Page Code Analysis

Dangerous Functions
0
Raw SQL Queries
0
0 prepared
Unescaped Output
0
2 escaped
Nonce Checks
0
Capability Checks
0
File Operations
0
External Requests
0
Bundled Libraries
0

Output Escaping

100% escaped2 total outputs
Attack Surface

Custom 404 Error Page Attack Surface

Entry Points0
Unprotected0
WordPress Hooks 5
actionplugins_loadedcustom-404-page.php:27
actionadmin_initphp\class-plugin.php:23
actioncustomize_registerphp\class-plugin.php:26
filter404_templatephp\class-plugin.php:30
actiontemplate_redirectphp\class-plugin.php:33
Maintenance & Trust

Custom 404 Error Page Maintenance & Trust

Maintenance Signals

WordPress version tested6.8.5
Last updatedOct 22, 2025
PHP min version
Downloads29K

Community Trust

Rating82/100
Number of ratings9
Active installs2K
Developer Profile

Custom 404 Error Page Developer Profile

WP Chill

29 plugins · 440K total installs

76
trust score
Avg Security Score
96/100
Avg Patch Time
608 days
View full developer profile
Detection Fingerprints

How We Detect Custom 404 Error Page

Patterns used to identify this plugin on WordPress sites during automated security audits and web crawling.

Asset Fingerprints

Asset Paths
/wp-content/plugins/custom-404-error-page/css/style.css/wp-content/plugins/custom-404-error-page/js/script.js
Script Paths
/wp-content/plugins/custom-404-error-page/js/script.js
Version Parameters
custom-404-error-page/css/style.css?ver=custom-404-error-page/js/script.js?ver=

HTML / DOM Fingerprints

FAQ

Frequently Asked Questions about Custom 404 Error Page