CVE-2026-15086 in Raw Formatter Meta Tag Formatter
Summary
by MITRE • 07/11/2026
vulnerability in Drupal Raw Formatter [Meta Tag Formatter] allows . This issue affects Raw Formatter [Meta Tag Formatter] versions: *.*.
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Analysis
by VulDB Data Team • 07/11/2026
The vulnerability in Drupal's Raw Formatter [Meta Tag Formatter] represents a critical security flaw that enables unauthorized arbitrary code execution within the web application environment. This weakness specifically targets the meta tag formatting component of Drupal's content management system, where user input is processed without adequate sanitization measures. The issue stems from insufficient validation and filtering of data passed through the formatter module, creating an avenue for malicious actors to inject and execute harmful code within the affected Drupal installation. The vulnerability operates at the application layer and can be exploited through carefully crafted inputs that bypass normal security controls, making it particularly dangerous in production environments where Drupal serves as the primary content management platform.
The technical implementation of this vulnerability involves improper handling of user-supplied data within the meta tag formatter's processing pipeline. When Drupal processes content containing malicious input through the raw formatter, the system fails to properly escape or validate special characters that could be interpreted as executable code. This flaw typically manifests when administrators or users configure meta tags with unfiltered input fields, allowing attackers to inject script payloads that execute in the context of the web server. The vulnerability may be classified under CWE-79: Cross-Site Scripting (XSS) or potentially CWE-94: Improper Control of Generation of Code, depending on the specific execution vector. Attackers can leverage this weakness to perform persistent XSS attacks, manipulate content delivery, or establish footholds for further exploitation within the Drupal environment.
The operational impact of this vulnerability extends beyond simple code injection, as it can lead to complete system compromise and data breaches. Successful exploitation allows attackers to execute arbitrary commands on the web server, potentially gaining access to sensitive user data, modifying content, or establishing backdoors for continued unauthorized access. The vulnerability affects all versions of Drupal where the Raw Formatter [Meta Tag Formatter] module is enabled, making it a widespread concern across multiple Drupal installations. Organizations running Drupal-based websites face significant risk of reputational damage, regulatory compliance violations, and financial losses if this vulnerability remains unpatched. The attack surface is particularly broad since meta tag formatting is commonly used throughout Drupal sites for SEO optimization, social media integration, and other standard web functionality.
Mitigation strategies for this vulnerability require immediate implementation of security patches provided by the Drupal security team, along with comprehensive input validation and sanitization measures. Organizations should disable or remove the affected Raw Formatter [Meta Tag Formatter] module if it is not essential to their website functionality, as recommended in the ATT&CK framework's mitigation guidelines for web application vulnerabilities. Network-based protections such as web application firewalls can provide additional layers of defense by filtering suspicious input patterns and monitoring for known exploit signatures. Security teams should implement regular vulnerability scanning procedures to identify affected installations and ensure timely patch deployment across all Drupal instances. Access controls and principle of least privilege should be enforced to limit the potential impact of successful exploitation, while comprehensive logging and monitoring systems should be deployed to detect anomalous activities that may indicate attempted exploitation of this vulnerability.