CVE-2021-28162 : Vulnerability Insights and Analysis

In Eclipse Theia versions up to and including 0.16.0, a vulnerability exists where notification messages lack HTML escaping, potentially allowing the execution of Javascript code.

Understanding CVE-2021-28162

This CVE relates to a security issue in Eclipse Theia versions up to 0.16.0 due to a lack of HTML escaping in notification messages.

What is CVE-2021-28162?

CVE-2021-28162 is a vulnerability in Eclipse Theia that permits the running of Javascript code through notification messages.

The Impact of CVE-2021-28162

The impact of CVE-2021-28162 could lead to remote code execution or other malicious activities by exploiting the lack of HTML escaping in notification messages.

Technical Details of CVE-2021-28162

This section provides more technical insights into the vulnerability.

Vulnerability Description

The vulnerability stems from the absence of HTML escaping in notification messages, enabling the execution of Javascript code.

Affected Systems and Versions

Eclipse Theia versions up to and including 0.16.0 are affected by this vulnerability.

Exploitation Mechanism

By exploiting the absence of HTML escaping, an attacker can inject and execute malicious Javascript code through notification messages.

Mitigation and Prevention

Mitigation strategies and best practices to address CVE-2021-28162.

Immediate Steps to Take

Users are advised to update Eclipse Theia to a version beyond 0.16.0 to mitigate the vulnerability and prevent possible exploitation.

Long-Term Security Practices

Implement secure coding practices, input validation, and output encoding to bolster the security of applications and prevent similar vulnerabilities.

Patching and Updates

Regularly apply security patches and updates provided by Eclipse Theia to address known vulnerabilities and enhance system security.