thumbGen Security & Risk Analysis
wordpress.org/plugins/thumbgenThis plugin creates a function named thumbGen() that allows to show any image in the specified size (plus many other things).
Is thumbGen Safe to Use in 2026?
Generally Safe
Score 85/100thumbGen has no known CVEs and is actively maintained. It's a solid choice for most WordPress installations.
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
thumbGen Security Vulnerabilities
thumbGen Code Analysis
Output Escaping
thumbGen Attack Surface
WordPress Hooks 2
Maintenance & Trust
thumbGen Maintenance & Trust
Maintenance Signals
Community Trust
thumbGen Alternatives
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thumbGen Developer Profile
3 plugins · 140 total installs
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
echo $fileCache;