Qwizcards | online quizzes and flashcards Security & Risk Analysis

The "qwiz-online-quizzes-and-flashcards" plugin v4.00 exhibits a mixed security posture. While it demonstrates good practices in SQL query handling and output escaping, significant concerns arise from its attack surface and lack of comprehensive authorization checks. The presence of 22 unprotected AJAX handlers presents a substantial risk, as attackers could potentially trigger unintended actions or exfiltrate data through these entry points. Although taint analysis did not reveal critical or high-severity issues, the single unsanitized path flow warrants attention, as it could be a vector for vulnerabilities if exploited correctly.

The plugin's vulnerability history shows a pattern of medium-severity Cross-Site Scripting (XSS) vulnerabilities, with the last recorded incident in July 2025. The fact that these are currently unpatched, even if medium, is a concern, implying potential ongoing risks. The plugin's strengths lie in its modern approach to SQL queries and robust output escaping, which mitigate common web vulnerabilities. However, the sheer number of unprotected AJAX endpoints significantly outweighs these strengths, demanding immediate remediation to secure the plugin effectively.