Simple Syntax Highlighting Security & Risk Analysis

wordpress.org/plugins/simple-syntax-highlighting

Simple, clean and lightweight syntax highlighting WordPress plugin.

60 active installs v1.1 PHP + WP 3.0+ Updated May 25, 2018
codehighlightersimple-syntax-highlightingsshsyntax
85
A · Safe
CVEs total0
Unpatched0
Last CVENever
Safety Verdict

Is Simple Syntax Highlighting Safe to Use in 2026?

Generally Safe

Score 85/100

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

No known CVEs Updated 7yr ago
Risk Assessment

The simple-syntax-highlighting plugin v1.1 exhibits a very strong security posture based on the provided static analysis and vulnerability history. The complete absence of identifiable attack surface points like AJAX handlers, REST API routes, shortcodes, or cron events, and the zero taint flows with unsanitized paths, indicate that the plugin's code is designed with significant security awareness, minimizing potential entry points for attackers. Furthermore, the code signals show excellent practices, with 100% of SQL queries using prepared statements and 100% of outputs being properly escaped. The presence of capability checks, even if limited, is also a positive sign of secure development. The plugin's vulnerability history is equally impressive, with zero recorded CVEs of any severity, suggesting a stable and well-maintained codebase that has not historically presented security risks.

While the data suggests an exceptionally secure plugin, the analysis does highlight one area for minor consideration: the complete absence of nonce checks and the limited number of capability checks (only 2). While this is not a direct vulnerability given the lack of attack surface, in future updates or if the plugin were to introduce new features that expand its attack surface, implementing more robust nonce and capability checks would further harden the plugin against potential cross-site request forgery (CSRF) or privilege escalation attacks. Overall, this plugin presents a low-risk profile due to its robust code practices and clean history.

Key Concerns

  • Missing nonce checks on potential entry points
  • Limited capability checks
Vulnerabilities
None known

Simple Syntax Highlighting Security Vulnerabilities

No known vulnerabilities — this is a good sign.
Version History

Simple Syntax Highlighting Release Timeline

v1.0
Code Analysis
Analyzed Mar 16, 2026

Simple Syntax Highlighting Code Analysis

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

Simple Syntax Highlighting Attack Surface

Entry Points0
Unprotected0
WordPress Hooks 7
actionadmin_initsimple-syntax-highlighting.php:18
actionadmin_menusimple-syntax-highlighting.php:19
actionadmin_headsimple-syntax-highlighting.php:20
actionwp_headsimple-syntax-highlighting.php:21
actionwp_enqueue_scriptssimple-syntax-highlighting.php:22
filtermce_external_pluginssimple-syntax-highlighting.php:106
filtermce_buttonssimple-syntax-highlighting.php:107
Maintenance & Trust

Simple Syntax Highlighting Maintenance & Trust

Maintenance Signals

WordPress version tested4.9.29
Last updatedMay 25, 2018
PHP min version
Downloads11K

Community Trust

Rating80/100
Number of ratings1
Active installs60
Developer Profile

Simple Syntax Highlighting Developer Profile

Pete Nelson

13 plugins · 8K total installs

86
trust score
Avg Security Score
88/100
Avg Patch Time
30 days
View full developer profile
Detection Fingerprints

How We Detect Simple Syntax Highlighting

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

Asset Fingerprints

Asset Paths
/wp-content/plugins/simple-syntax-highlighting/css/simple-syntax-highlighting.min.css/wp-content/plugins/simple-syntax-highlighting/js/highlight.min.js/wp-content/plugins/simple-syntax-highlighting/js/highlightjs-line-numbers.min.js
Script Paths
/wp-content/plugins/simple-syntax-highlighting/js/ssh-plugin.min.js
Version Parameters
simple-syntax-highlighting/css/simple-syntax-highlighting.min.css?ver=simple-syntax-highlighting/js/highlight.min.js?ver=simple-syntax-highlighting/js/highlightjs-line-numbers.min.js?ver=simple-syntax-highlighting/js/ssh-plugin.min.js?ver=

HTML / DOM Fingerprints

JS Globals
hljs
FAQ

Frequently Asked Questions about Simple Syntax Highlighting