My Calendar – Accessible Event Manager Security & Risk Analysis

The 'my-calendar' v3.7.6 plugin exhibits a mixed security posture. While it demonstrates strong adherence to secure coding practices in many areas, such as a high percentage of SQL prepared statements and properly escaped output, significant concerns remain. The presence of two dangerous functions, specifically 'unserialize,' without explicit mention of sanitization for its usage, warrants caution. Furthermore, the static analysis reveals an attack surface with 3 unprotected entry points out of 24 total, including an unprotected REST API route and two AJAX handlers lacking authentication checks, presenting immediate opportunities for unauthorized actions.

Taint analysis indicates a worrying trend, with 38 high-severity flows identified. These flows, coupled with the presence of dangerous functions, suggest a potential for severe vulnerabilities if not adequately addressed. The plugin's history of 16 known CVEs, although currently all patched, includes past critical and high-severity vulnerabilities. The types of past vulnerabilities are also concerning, encompassing Cross-site Scripting, Missing Authorization, SQL Injection, CSRF, Open Redirect, and Path Traversal, indicating recurring areas of weakness.

In conclusion, while 'my-calendar' v3.7.6 shows strengths in output escaping and SQL query sanitization, the identified unprotected entry points, critical taint flows, and the historical pattern of diverse and severe vulnerabilities suggest a moderate to high risk. Vigilance and thorough auditing of the 'unserialize' usage and the identified taint flows are paramount for mitigating potential security threats.