Fastcache by Host.it Security & Risk Analysis

The plugin 'fastcache-by-host-it' v1.5.20 presents a mixed security posture. On the positive side, it has no known CVEs, indicating a good track record of security. All SQL queries are properly prepared, and there are a reasonable number of capability and nonce checks, suggesting some attention to secure coding practices. However, several areas raise concerns. The plugin has a significant attack surface with 6 AJAX handlers, of which 3 lack proper authentication checks, creating a clear pathway for unauthenticated attackers. Additionally, the presence of the `unserialize` function, especially without explicit taint analysis indicating it's handled safely, is a notable risk. While taint analysis didn't reveal critical or high severity issues, the presence of unsanitized paths in all analyzed flows warrants caution. The lack of a vulnerability history is generally good, but it doesn't absolve the plugin from potential undiscovered issues, particularly given the aforementioned code signals.