CVE-2020-13672 : Vulnerability Insights and Analysis

Drupal Core versions 7.x, 8.9.x, 9.0.x, and 9.1.x are affected by a Cross-site Scripting (XSS) vulnerability. This CVE-2020-13672 impacts the sanitization API of Drupal core, allowing XSS attacks.

Understanding CVE-2020-13672

This CVE identifies a critical XSS vulnerability in Drupal Core versions.

What is CVE-2020-13672?

Cross-site Scripting (XSS) vulnerability in Drupal core's sanitization API fails to properly filter cross-site scripting under certain circumstances.

The Impact of CVE-2020-13672

Affected versions: Drupal Core 9.1.x < 9.1.7, 9.0.x < 9.0.12, 8.9.x < 8.9.14, 7.x < 7.80
Vulnerability type: CWE-79 Cross-site Scripting (XSS)

Technical Details of CVE-2020-13672

This section provides technical insights into the vulnerability.

Vulnerability Description

The XSS vulnerability in Drupal Core's sanitization API allows malicious actors to execute arbitrary scripts on the target system.

Affected Systems and Versions

Drupal Core 9.1.x < 9.1.7
Drupal Core 9.0.x < 9.0.12
Drupal Core 8.9.x < 8.9.14
Drupal Core 7.x < 7.80

Exploitation Mechanism

Attackers can exploit this vulnerability by injecting malicious scripts into user input fields, leading to unauthorized script execution.

Mitigation and Prevention

Protect your systems from CVE-2020-13672 with these security measures.

Immediate Steps to Take

Update Drupal Core to the latest patched version
Implement input validation and output encoding to prevent XSS attacks
Monitor and filter user input for malicious scripts

Long-Term Security Practices

Regularly audit and update security configurations
Educate users on safe browsing practices and phishing awareness
Employ web application firewalls to detect and block malicious traffic

Patching and Updates

Apply security patches promptly to mitigate vulnerabilities
Stay informed about security advisories and updates from Drupal