e-Boekhouden.nl Security & Risk Analysis

The e-boekhoudennl-connector v1.9.3 plugin presents a mixed security posture. On one hand, it demonstrates good practices by having a limited attack surface with no apparent unprotected entry points like AJAX handlers, REST API routes, or shortcodes. Furthermore, it avoids dangerous functions and external HTTP requests. However, significant concerns arise from its handling of SQL queries, with 100% of them not using prepared statements, indicating a high risk of SQL injection vulnerabilities. The low percentage of properly escaped output (26%) also points to potential Cross-Site Scripting (XSS) vulnerabilities.

The vulnerability history reveals a concerning pattern, with one medium severity CVE historically and currently unpatched. The common vulnerability type being Cross-Site Scripting further corroborates the risks identified in the code analysis. The presence of an unpatched vulnerability, even if medium severity, poses an immediate risk to users of this plugin.

In conclusion, while the plugin has strengths in limiting its attack surface and avoiding certain risky coding patterns, the prevalent use of raw SQL queries and the documented unpatched XSS vulnerability create substantial security risks. The 100% unsanitized taint flows with unsanitized paths are particularly alarming, suggesting that user-supplied data is not being properly handled, potentially leading to various injection attacks.