thumbGen Security & Risk Analysis

wordpress.org/plugins/thumbgen

This plugin creates a function named thumbGen() that allows to show any image in the specified size (plus many other things).

100 active installs v2.7.1 PHP + WP 2.9.0+ Updated Jan 30, 2015
generatorimageimagesthumbthumbnail
85
A · Safe
CVEs total0
Unpatched0
Last CVENever
Safety Verdict

Is thumbGen Safe to Use in 2026?

Generally Safe

Score 85/100

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

No known CVEs Updated 11yr ago
Risk Assessment

The thumbgen plugin v2.7.1 demonstrates a generally strong security posture based on the provided static analysis. The complete absence of AJAX handlers, REST API routes, shortcodes, and cron events means there are no immediately obvious entry points into the plugin's functionality that require protection. Furthermore, the code shows a commitment to secure database interactions, with 100% of SQL queries utilizing prepared statements, and no critical or high-severity taint flows were identified. The plugin also has no recorded vulnerability history, which is a positive indicator of its development and maintenance.

However, there are notable areas of concern. The most significant is the 0% output escaping for the three identified output operations. This is a critical oversight that could lead to cross-site scripting (XSS) vulnerabilities if the output contains user-supplied data without proper sanitization. While the attack surface appears minimal, the lack of capability checks on any potential (though currently unlisted) entry points is also a weakness, as it relies entirely on the absence of exposed functions rather than explicit authorization. The absence of nonce checks is also a concern, as it leaves any potential future AJAX or similarly sensitive operations vulnerable to CSRF attacks.

In conclusion, while thumbgen v2.7.1 is strong in database security and has no known historical vulnerabilities, the complete lack of output escaping is a serious risk that needs immediate attention. The absence of nonce and capability checks, while not directly exploitable with the current attack surface, represents potential future vulnerabilities if new features are added without proper security considerations.

Key Concerns

  • 0% output escaping for 3 outputs
  • No nonce checks
  • No capability checks
Vulnerabilities
None known

thumbGen Security Vulnerabilities

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

thumbGen Code Analysis

Dangerous Functions
0
Raw SQL Queries
0
0 prepared
Unescaped Output
3
0 escaped
Nonce Checks
0
Capability Checks
0
File Operations
4
External Requests
0
Bundled Libraries
0

Output Escaping

0% escaped3 total outputs
Attack Surface

thumbGen Attack Surface

Entry Points0
Unprotected0
WordPress Hooks 2
actionadmin_menuthumbGen.php:263
filterplugin_action_linksthumbGen.php:294
Maintenance & Trust

thumbGen Maintenance & Trust

Maintenance Signals

WordPress version tested4.1.42
Last updatedJan 30, 2015
PHP min version
Downloads13K

Community Trust

Rating60/100
Number of ratings2
Active installs100
Developer Profile

thumbGen Developer Profile

sebastianbarria

3 plugins · 140 total installs

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

How We Detect thumbGen

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

Asset Fingerprints

HTML / DOM Fingerprints

Shortcode Output
echo $fileCache;
FAQ

Frequently Asked Questions about thumbGen