CVE-2021-29663 : Security Advisory and Response

CourseMS 2.1, also known as Course Registration Management System, is vulnerable to cross-site scripting (XSS) attacks. This vulnerability allows an attacker with Admin account access to execute malicious scripts by creating a Job Title in the Site area.

Understanding CVE-2021-29663

CourseMS 2.1 is prone to a cross-site scripting (XSS) vulnerability that could lead to the execution of arbitrary code.

What is CVE-2021-29663?

CourseMS (Course Registration Management System) 2.1 is impacted by a cross-site scripting (XSS) vulnerability. Admin account holders can inject an XSS payload via the 'admin/add_jobs.php' name parameter.

The Impact of CVE-2021-29663

This vulnerability allows attackers to execute malicious scripts, potentially compromising the security and integrity of the system. It could lead to unauthorized access or data theft.

Technical Details of CVE-2021-29663

CourseMS 2.1 vulnerability details, affected systems, and exploitation methods.

Vulnerability Description

An attacker with Admin account access can insert an XSS payload through the Job Title creation feature, leading to script execution on the registration page.

Affected Systems and Versions

CourseMS (Course Registration Management System) version 2.1 is confirmed to be affected by this cross-site scripting (XSS) vulnerability.

Exploitation Mechanism

By crafting a malicious script within the Job Title field in the Site area, an attacker can execute this payload when users visit the registration page.

Mitigation and Prevention

Measures to address and prevent the CVE-2021-29663 vulnerability.

Immediate Steps to Take

Disable the affected Job Title creation feature until a patch is applied.
Regularly monitor for any suspicious activities on the registration page.

Long-Term Security Practices

Implement input validation mechanisms to sanitize user inputs effectively.
Conduct regular security audits and penetration testing to identify and mitigate vulnerabilities.

Patching and Updates

Apply the latest security patches or updates provided by CourseMS to fix the XSS vulnerability in version 2.1.