Horizon Alert
Summary of the vulnerability and why it matters
A vulnerability in Drupal core allows for improper handling of uploaded file extensions. This could result in files being served with incorrect MIME types or, in specific hosting environments, being executed as PHP code. The issue impacts organizations utilizing Drupal for their content management systems.
- Vulnerable Drupal core component
- Improper filename sanitization
- Potential code execution, data compromise
Attack Path
How an attacker could exploit the issue
An attacker can gain unauthorized access to a Drupal website by exploiting a flaw in how the system handles uploaded filenames. This allows for the potential execution of malicious code, impacting the integrity and availability of the website and its data. The attack leverages the website's file upload functionality to compromise the underlying system.
- Exposed file upload functionality.
- Attacker uploads a specially crafted file.
- Malicious code execution, system compromise.
Live Threat
Current exploitation, exposure, and threat context
This vulnerability allows for unauthorized code execution and potential data manipulation within affected systems. Attackers could leverage this by uploading malicious files disguised with incorrect extensions, leading to them being processed as executable code. This poses a significant risk to the integrity and availability of organizational data and services.
- Attackers with low skill could exploit this.
- Requires limited access to upload files.
- High business risk and urgency.
Priority actions
Operational Fix
Recommended remediation, mitigation, and detection steps
This vulnerability impacts Drupal installations by allowing uploaded files to be interpreted with incorrect extensions or executed as PHP. This could expose organizations to unauthorized code execution or data manipulation. Affected systems, employees handling uploaded content, and the integrity of business data may be at risk.
- Identify exposed Drupal assets.
- Reduce exposure or isolate risk.
- Apply vendor fix and validate.
- Monitor for related issues.
