CVE-2021-43675 : What You Need to Know

Lychee-v3 3.2.16 is affected by a Cross Site Scripting (XSS) vulnerability in php/Access/Guest.php.

Understanding CVE-2021-43675

What is CVE-2021-43675?

Lychee-v3 3.2.16 is susceptible to a Cross Site Scripting (XSS) vulnerability in php/Access/Guest.php due to user-controlled data in the albumID.

The Impact of CVE-2021-43675

This vulnerability allows attackers to inject malicious scripts into web pages viewed by other users, leading to unauthorized access or data theft.

Technical Details of CVE-2021-43675

Vulnerability Description

The vulnerability in Lychee-v3 3.2.16 arises from the function exit terminating the script and displaying the albumID, controlled by the user, to the user.

Affected Systems and Versions

Vendor: N/A
Product: N/A
Version: 3.2.16 (affected)

Exploitation Mechanism

Attackers inject malicious scripts through the albumID parameter, exploiting the XSS vulnerability to execute unauthorized actions.

Mitigation and Prevention

Immediate Steps to Take

Update Lychee-v3 to a non-vulnerable version if available.
Avoid accessing untrusted websites or content that may contain malicious scripts.

Long-Term Security Practices

Regularly monitor and patch applications for security vulnerabilities.
Educate users on safe browsing practices to prevent XSS attacks.
Implement content security policies to mitigate XSS risks.
Perform security assessments and penetration testing regularly.
Stay informed about security updates and vulnerabilities in web applications.
Employ web application firewalls for an added layer of defense.