CVE-2021-41948 : Security Advisory and Response

A cross-site scripting (XSS) vulnerability has been identified in the "contact us" plugin for Subrion CMS version 4.2.1 or below.

Understanding CVE-2021-41948

This CVE-2021-41948 article provides detailed insights into a specific XSS vulnerability affecting Subrion CMS.

What is CVE-2021-41948?

CVE-2021-41948 concerns a security flaw in Subrion CMS's "contact us" plugin that allows attackers to execute malicious scripts via the "List of subjects" feature.

The Impact of CVE-2021-41948

The vulnerability exposes users to cross-site scripting attacks, potentially leading to unauthorized access, data theft, and manipulation of website content.

Technical Details of CVE-2021-41948

In-depth technical information regarding the CVE-2021-41948 vulnerability.

Vulnerability Description

The XSS vulnerability in the "contact us" plugin of Subrion CMS <= 4.2.1 enables attackers to inject and execute malicious scripts through the "List of subjects" input, posing a significant security risk.

Affected Systems and Versions

Product: Subrion CMS
Versions affected: <= 4.2.1

Exploitation Mechanism

Attackers exploit the vulnerability by injecting malicious scripts into the "List of subjects" field, targeting users who view or interact with the compromised content.

Mitigation and Prevention

Effective strategies to mitigate the CVE-2021-41948 vulnerability.

Immediate Steps to Take

Disable or remove the vulnerable "contact us" plugin from Subrion CMS installations.
Educate users about the risks of interacting with untrusted content.

Long-Term Security Practices

Regularly update Subrion CMS to the latest version to patch known vulnerabilities.
Implement input validation and output encoding mechanisms to prevent XSS attacks.

Patching and Updates

Apply security patches provided by Subrion CMS to fix the XSS vulnerability and enhance overall system security.