CVE-2026-5293
MediumCVSS 6.4Exploitation Probability (EPSS)
Low risk23th percentile - higher than 23% of all known CVEs
Summary
The Diagnosis Generator plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'js' parameter in versions up to and including 1.4.16. Missing authorization checks and insufficient input sanitization in the themeFunc() function allow any authenticated user (including subscribers) to save malicious JavaScript to theme files.
Risk Assessment
Attackers can inject scripts that execute whenever a user accesses a page with the diagnosis form shortcode, potentially leading to session theft or other attacks.
Recommendation
Update the plugin to a version above 1.4.16 or apply appropriate security measures.
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Original NVD description (English source)
The 診断ジェネレータ作成プラグイン (Diagnosis Generator) plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'js' parameter in versions up to and including 1.4.16. This is due to missing authorization checks and insufficient input sanitization in the themeFunc() function. The function is hooked to 'admin_init' and processes theme update requests without verifying user capabilities, allowing any authenticated user (including subscribers) to save malicious JavaScript to theme files. Additionally, the save() function uses stripslashes() which removes WordPress's magic quotes protection. This makes it possible for authenticated attackers, with subscriber-level access and above, to inject arbitrary web scripts in theme files that will execute whenever a user accesses a page containing the diagnosis form shortcode.
Vulnerability data from NVD (NIST) · CISA KEV · EPSS