Sell BTC – Cryptocurrency Selling Calculator Security & Risk Analysis

The 'sell-btc-by-hayyatapps' v1.6 plugin exhibits a mixed security posture. While it demonstrates good practices with a high percentage of properly escaped output and no reported critical or high severity taint flows, significant concerns arise from its attack surface and lack of robust authentication checks. The presence of two AJAX handlers without any authentication or capability checks creates a direct entry point for unauthenticated users, which is a major security weakness. This lack of protection could allow malicious actors to trigger unintended actions or access sensitive data if these handlers are not sufficiently secured internally. The plugin's vulnerability history shows one known high severity CVE, although it is currently unpatched. This, coupled with the existing unprotected entry points, suggests a potential for exploitation if similar vulnerabilities are introduced or if the current unprotected handlers are found to be susceptible to common web attacks. While the plugin avoids dangerous functions and external HTTP requests, and a good portion of its SQL queries use prepared statements, the identified unprotected AJAX endpoints and past high-severity vulnerability are critical areas that require immediate attention to improve its overall security.