Qwiz Online Quizzes And Flashcards Cross-Site Scripting Scanner

Qwiz Online Quizzes And Flashcards is a WordPress plugin used by educators, trainers, and students for creating interactive quizzes and flashcards. This tool is popular in educational institutions and online learning platforms for its ease of use and interactive features that enhance learning experiences. It allows users to create, share, and embed quizzes and flashcards on websites. The primary aim is to facilitate learning and retention through engaging interactive content. The rich feature set makes it suitable for diverse educational contexts, from elementary schooling to higher education. Its integration capabilities with WordPress provide users with the ability to manage educational content efficiently.

The Cross-Site Scripting (XSS) vulnerability detected allows attackers to inject malicious scripts into web pages viewed by other users. This occurs when the application takes user-supplied data and sends it to a web browser without proper validation or escaping. Such vulnerabilities can allow attackers to execute arbitrary scripts in the context of the user's session. Specifically, the affected parameters include qname, i_qwiz, session_id, and username. XSS vulnerabilities can lead to session hijacking, defacement, or redirecting to malicious sites. Proper input validation and output escaping are pivotal in preventing this type of vulnerability.

The technical details of the XSS vulnerability include the vulnerable endpoint and parameters such as qname, i_qwiz, session_id, and username passed to the registration_complete.php file. These parameters are improperly sanitized, allowing attackers to craft malicious payloads that are executed in the browser of users who visit the affected pages. The HTTP request includes injecting a script tag that displays an alert with the document's domain. This demonstrates how attackers could exploit this flaw to run malicious scripts. Remediation involves updating to version 3.37, where this issue has been addressed.

Exploitation of the XSS vulnerability can result in severe impacts like unauthorized actions performed on behalf of logged-in users, access to sensitive information such as cookies and session tokens, or exposure of confidential data. It also opens the door for phishing attacks by redirecting users to malicious websites. In severe cases, a compromise can lead to site defacement or spreading malware. The affected website may suffer from a loss of user trust and reputational damage.

REFERENCES

• https://wpscan.com/vulnerability/d3c10f69-87b6-43fd-bcbc-c2d35b683ff4
• https://packetstormsecurity.com/files/154403/
• https://wordpress.org/plugins/qwiz-online-quizzes-and-flashcards/