User Info Login Shortcode Security & Risk Analysis

The "userinfologinshortcode" v0.2.1 plugin exhibits a mixed security posture. On the positive side, it demonstrates good practices regarding output escaping, with 100% of analyzed outputs being properly escaped. Furthermore, the plugin has no known recorded vulnerabilities (CVEs), suggesting a history of stable and secure development or a lack of widespread exploitation. The attack surface is also minimal, with only one shortcode and no AJAX handlers or REST API routes that are exposed without authentication checks. Taint analysis found no critical or high-severity flaws, and dangerous functions and file operations are absent.

However, a significant concern lies in the handling of SQL queries. All three identified SQL queries are executed without prepared statements. This makes the plugin highly susceptible to SQL injection vulnerabilities if any user-supplied data is incorporated into these queries, even if output is escaped. The lack of nonce checks and capability checks also presents a potential risk, as it implies that the functionality triggered by the shortcode might not be adequately protected against unauthorized access or misuse if those functions are called indirectly.