Drupal AT Internet SmartTag Cross-Site Scripting Vulnerability (CVE-2026-0946) — Medium Severity

Understanding the Risk

Imagine visiting your favorite website, only for a hidden, malicious script to run in the background without your knowledge. This script could potentially steal your personal information, hijack your session, or even redirect you to a harmful site. This scenario describes a Cross-Site Scripting (XSS) vulnerability, and it’s precisely what has been identified in the Drupal AT Internet SmartTag module.

This vulnerability means that an attacker could inject malicious code into web pages generated by the module. When an unsuspecting user views that page, the malicious script executes in their browser, leading to various unwelcome outcomes. For anyone managing a Drupal site using this module, understanding and addressing this issue is crucial to maintaining user trust and data security.

CVE Details

This security flaw is tracked as CVE-2026-0946.

  • Product Name: Drupal AT Internet SmartTag
  • Published Date: February 4, 2026
  • Severity: Medium
  • Status: Analyzed

Affected Products

The Cross-Site Scripting vulnerability impacts the AT Internet SmartTag module for Drupal. Specifically, any versions from 0.0.0 up to, but not including, 1.0.1 are vulnerable. If you are running an older version of this module, your Drupal installation is at risk.

Current Status

The vulnerability, CVE-2026-0946, has been Analyzed. This means the details of the flaw have been reviewed and confirmed, and it is publicly known. Site administrators and developers should take immediate action to mitigate the risk.

Severity Level

With a CVSS score of 6.1, this vulnerability is rated as Medium Severity. A medium severity rating indicates that while the vulnerability might not be immediately critical, it still poses a significant risk. XSS vulnerabilities can lead to unauthorized access to user data, session hijacking, or defacement of a website, making it a threat that should not be ignored.

Possible Solutions

To protect your Drupal site from this Cross-Site Scripting vulnerability, the most critical step is to update your AT Internet SmartTag module. Based on the vulnerability description, versions before 1.0.1 are affected. Therefore, upgrading to version 1.0.1 or a newer stable release is the recommended solution.

Always ensure you back up your website before performing any updates. After updating, clear your Drupal caches to ensure all changes are applied correctly. For the most up-to-date patching instructions and specific module releases, always refer to the official Drupal project page for the AT Internet SmartTag module.

You might also be interested in our guide on ‘Understanding and Preventing Cross-Site Scripting (XSS) Attacks’.

References

https://www.drupal.org/sa-contrib-2026-003

Alex Joseph
Alex Joseph

Alex Joseph is a Senior Support Staff professional with deep experience in server management, web hosting technologies, and cybersecurity operations. He works daily with Linux servers, cloud platforms, performance tuning, and security hardening, giving him strong real-world technical knowledge. Along with his support role, he write about security best practices, hosting infrastructure, and software management.