CVE-2020-28930 : What You Need to Know

A Cross-Site Scripting (XSS) vulnerability in EPSON EPS TSE Server 8 (21.0.11) allows an authenticated attacker to inject malicious JavaScript code.

Understanding CVE-2020-28930

This CVE identifies a security flaw in EPSON EPS TSE Server 8 that enables an attacker to execute arbitrary JavaScript code.

What is CVE-2020-28930?

The vulnerability lies in the 'update user' and 'delete user' functionalities in settings/users.php, allowing an authenticated attacker to insert a JavaScript payload on the user management page.

The Impact of CVE-2020-28930

The exploit permits the injection of malicious scripts that can be executed by an administrator, potentially leading to unauthorized actions or data theft.

Technical Details of CVE-2020-28930

EPSON EPS TSE Server 8 (21.0.11) is susceptible to the following:

Vulnerability Description

Cross-Site Scripting (XSS) issue in 'update user' and 'delete user' functionalities

Affected Systems and Versions

Product: EPSON EPS TSE Server 8
Version: 21.0.11

Exploitation Mechanism

Attacker must be authenticated
Inject JavaScript payload in user management page

Mitigation and Prevention

Taking immediate steps and implementing long-term security practices are crucial:

Immediate Steps to Take

Apply security patches promptly
Monitor user input for malicious scripts
Educate users on safe browsing habits

Long-Term Security Practices

Regular security audits and code reviews
Implement Content Security Policy (CSP) headers
Use input validation and output encoding techniques
Stay informed about security best practices

Patching and Updates

Update EPSON EPS TSE Server to the latest version
Follow vendor recommendations for security patches and updates