Customizer Security & Risk Analysis

wordpress.org/plugins/customizer

Add theme's or plugin's options to the WordPress Customizer. Build theme and plugin options accessible from WordPress front-end.

200 active installs v0.7 PHP + WP 3.8+ Updated Feb 2, 2014
backendcustomizecustomizerdeveloper
85
A · Safe
CVEs total0
Unpatched0
Last CVENever
Safety Verdict

Is Customizer Safe to Use in 2026?

Generally Safe

Score 85/100

Customizer has no known CVEs and is actively maintained. It's a solid choice for most WordPress installations.

No known CVEs Updated 12yr ago
Risk Assessment

The "customizer" plugin v0.7 exhibits a generally good security posture based on the provided static analysis. The absence of AJAX handlers, REST API routes, cron events, and file operations significantly limits the potential attack surface. Crucially, all SQL queries observed utilize prepared statements, and there are no recorded vulnerabilities or CVEs, indicating a history of secure development or diligent patching. However, a notable weakness lies in the output escaping, where a significant portion (46%) of outputs are not properly escaped, presenting a potential risk for Cross-Site Scripting (XSS) vulnerabilities, especially given the presence of a shortcode which is an entry point. While there are capability checks, the lack of nonce checks on any entry points also raises concerns about potential CSRF attacks if the shortcode or other functionalities were to perform sensitive actions.

Key Concerns

  • Low output escaping rate
  • Missing nonce checks on entry points
Vulnerabilities
None known

Customizer Security Vulnerabilities

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

Customizer Code Analysis

Dangerous Functions
0
Raw SQL Queries
0
0 prepared
Unescaped Output
6
7 escaped
Nonce Checks
0
Capability Checks
2
File Operations
0
External Requests
0
Bundled Libraries
0

Output Escaping

54% escaped13 total outputs
Attack Surface

Customizer Attack Surface

Entry Points1
Unprotected0

Shortcodes 1

[customizer] customizer_shortcodes.php:20
WordPress Hooks 7
filterplugin_action_linkscustomizer.php:26
actioncustomize_controls_enqueue_scriptscustomizer.php:31
actioncustomize_registercustomizer.php:53
actioncustomize_controls_enqueue_scriptscustomizer.php:222
actionadmin_menucustomizer_options.php:15
actionadmin_initcustomizer_options.php:47
actionadmin_enqueue_scriptscustomizer_options.php:66
Maintenance & Trust

Customizer Maintenance & Trust

Maintenance Signals

WordPress version tested3.7.41
Last updatedFeb 2, 2014
PHP min version
Downloads15K

Community Trust

Rating100/100
Number of ratings1
Active installs200
Developer Profile

Customizer Developer Profile

amielucha

2 plugins · 210 total installs

84
trust score
Avg Security Score
85/100
Avg Patch Time
30 days
View full developer profile
Detection Fingerprints

How We Detect Customizer

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

Asset Fingerprints

Asset Paths
/wp-content/plugins/customizer/customizer.css/wp-content/plugins/customizer/jquery.cookie.js/wp-content/plugins/customizer/jquery.validate.js/wp-content/plugins/customizer/customizer.js
Script Paths
/wp-content/plugins/customizer/jquery.cookie.js/wp-content/plugins/customizer/jquery.validate.js/wp-content/plugins/customizer/customizer.js

HTML / DOM Fingerprints

FAQ

Frequently Asked Questions about Customizer