Advanced Custom Fields Contact Form 7 Security & Risk Analysis

The "acf-contact-form-7" plugin version 1.1.6 presents a strong security posture based on the provided static analysis. There are no identified AJAX handlers, REST API routes, shortcodes, or cron events, resulting in zero total entry points. Furthermore, the absence of dangerous function usage, raw SQL queries, file operations, external HTTP requests, and the fact that all SQL queries utilize prepared statements are all positive indicators. The plugin also does not appear to bundle any external libraries, which can often be a source of vulnerabilities.

However, a notable concern arises from the output escaping. With 7 total outputs and only 57% properly escaped, there is a significant potential for cross-site scripting (XSS) vulnerabilities. This means that data displayed to users might not be adequately sanitized, allowing for malicious scripts to be injected. The lack of nonce checks and capability checks, while not directly indicated as issues by the analysis (due to the limited attack surface), could become a concern if the attack surface were to expand in future versions or if there are other implicit vulnerabilities not caught by this specific analysis.

Given the complete absence of any recorded vulnerabilities or CVEs, the plugin has a clean track record. This, combined with the strong technical measures like prepared statements and lack of dangerous functions, suggests a generally well-developed plugin. The primary area of weakness is the insufficient output escaping, which requires immediate attention to mitigate XSS risks. Overall, the plugin is technically sound with a good history, but the unescaped output introduces a tangible risk.