CVE-2020-5748 : Security Advisory and Response

TCExam 14.2.2 is vulnerable to unauthenticated stored cross-site scripting (XSS) attacks due to insufficient output sanitization. Attackers can exploit this issue via the self-registration feature.

Understanding CVE-2020-5748

This CVE identifies a security vulnerability in TCExam 14.2.2 that allows remote attackers to execute persistent XSS attacks without authentication.

What is CVE-2020-5748?

The vulnerability in TCExam 14.2.2 permits unauthenticated attackers to perform persistent XSS attacks through the self-registration functionality.

The Impact of CVE-2020-5748

Remote, unauthenticated attackers can exploit this flaw to execute malicious scripts in the context of a user's browser, potentially leading to account compromise, data theft, or further attacks.

Technical Details of CVE-2020-5748

TCExam 14.2.2 vulnerability details and affected systems.

Vulnerability Description

Insufficient output sanitization in TCExam 14.2.2 enables remote, unauthenticated attackers to conduct persistent XSS attacks via the self-registration feature.

Affected Systems and Versions

Product: TCExam
Version: 14.2.2

Exploitation Mechanism

Attackers can inject malicious scripts through the self-registration feature, exploiting the lack of proper output sanitization.

Mitigation and Prevention

Protecting systems from CVE-2020-5748.

Immediate Steps to Take

Disable self-registration feature if not essential.
Implement input validation and output encoding to mitigate XSS risks.

Long-Term Security Practices

Regularly update TCExam to the latest version with security patches.
Conduct security training for developers to enhance awareness of secure coding practices.

Patching and Updates

Apply patches provided by TCExam promptly to address the XSS vulnerability.