Tebuto – Online-Terminbuchung Security & Risk Analysis

The "tebuto-online-terminbuchung" v2.1.0 plugin exhibits a generally strong security posture based on the provided static analysis. A significant positive indicator is that 100% of identified output operations are properly escaped, and there are no observed unsanitized paths in the taint analysis. Furthermore, the plugin implements a good number of nonce and capability checks, contributing to a more secure foundation. The complete absence of known CVEs and historical vulnerabilities is also a very positive sign, suggesting a history of responsible development and maintenance.

However, there are areas that warrant attention. While the total number of entry points is low and none are explicitly unprotected, the presence of AJAX handlers without explicit authentication checks is a potential concern. A deeper audit of these handlers would be necessary to confirm their internal security measures. Additionally, a notable percentage of SQL queries are not using prepared statements, which, although not explicitly stated as vulnerable here, is a practice that increases the risk of SQL injection if not handled with extreme care. The plugin also makes a moderate number of external HTTP requests, which could introduce risks if the target endpoints are compromised or if data is transmitted insecurely.