CVE-2021-45888 : Security Advisory and Response

An issue was discovered in PONTON X/P Messenger before 3.11.2 where the navigation tree of the web application is vulnerable to XSS, allowing injection of JavaScript by users with specific privileges.

Understanding CVE-2021-45888

What is CVE-2021-45888?

The CVE-2021-45888 vulnerability exists in PONTON X/P Messenger before version 3.11.2, enabling attackers to inject JavaScript into the navigation tree nodes accessible to authorized users.

The Impact of CVE-2021-45888

Exploiting this vulnerability could lead to unauthorized access, data theft, and potentially the execution of malicious actions within the web application.

Technical Details of CVE-2021-45888

Vulnerability Description

The navigation tree in PONTON X/P Messenger is prone to XSS attacks, enabling Configuration Administrators or Administrators to create nodes that can inject JavaScript.

Affected Systems and Versions

Product: PONTON X/P Messenger
Vendor: PONTON
Versions affected: Before 3.11.2

Exploitation Mechanism

The vulnerability allows users with specific roles to create malicious nodes in the navigation tree, leading to the execution of injected JavaScript code.

Mitigation and Prevention

Immediate Steps to Take

Upgrade PONTON X/P Messenger to version 3.11.2 or later to mitigate the vulnerability.
Restrict access to the affected areas for non-privileged users to minimize the risk of exploitation.

Long-Term Security Practices

Regularly review and update user roles and privileges to ensure least privilege access.
Implement input validation and output encoding to prevent XSS attacks.

Patching and Updates

Apply security patches provided by PONTON promptly to address known vulnerabilities and enhance the overall security posture.