CVE-2026-11909 in Examples for Developers
Summary
by MITRE • 07/11/2026
Missing Authorization vulnerability in Drupal Examples for Developers allows Forceful Browsing. This issue affects Examples for Developers versions: from 0.0.0 to 4.0.6.
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Analysis
by VulDB Data Team • 07/11/2026
The Missing Authorization vulnerability in Drupal Examples for Developers represents a critical access control flaw that enables forceful browsing attacks through improper permission validation mechanisms. This vulnerability exists within the module's implementation where it fails to properly verify user authorization before exposing sensitive functionality or content to unauthorized users. The issue affects all versions from 0.0.0 up to and including 4.0.6, indicating a long-standing problem that has persisted across multiple releases. The vulnerability stems from the module's failure to implement proper access controls for its various endpoints and features, allowing attackers to bypass intended security restrictions through direct URL manipulation or parameter tampering.
The technical exploitation of this vulnerability occurs when an attacker attempts to access restricted resources within the Examples for Developers module without proper authentication or authorization. This forceful browsing capability enables unauthorized users to navigate directly to protected pages, download sensitive files, execute administrative functions, or access configuration data that should only be available to authorized administrators. The flaw typically manifests when the module does not properly validate user roles or permissions before serving content, allowing attackers to manipulate request parameters or directly access URLs that would normally require elevated privileges.
From an operational impact perspective, this vulnerability creates significant security risks for Drupal installations using the Examples for Developers module. Attackers can potentially gain unauthorized access to sensitive development documentation, configuration files, or administrative interfaces that contain information about the system's internal structure and potential attack vectors. The vulnerability also enables privilege escalation scenarios where unauthenticated users might be able to perform actions typically restricted to authenticated administrators, leading to complete system compromise. The impact extends beyond immediate data exposure as attackers can use this access to gather intelligence for further attacks or to establish persistent access within the environment.
The vulnerability aligns with CWE-285, which specifically addresses insufficient authorization issues in software systems, and maps to ATT&CK technique T1078.004 for valid accounts usage and T1566.001 for spearphishing attachments, as attackers can leverage this weakness to gain unauthorized access to system resources. Organizations should immediately implement mitigations including applying the latest security patches that address the authorization bypass, implementing proper access controls at the web server level, and conducting thorough audits of all modules to identify similar authorization issues. Additionally, organizations should enforce strict input validation, implement comprehensive logging of access attempts, and consider network segmentation to limit potential damage from successful exploitation attempts.
Security teams must prioritize this vulnerability as it represents a fundamental breakdown in the application's security model that allows attackers to bypass core access control mechanisms without requiring sophisticated attack vectors or exploiting additional vulnerabilities. The long timeframe of vulnerability across multiple versions suggests that organizations using Drupal may have been exposed for extended periods, making proactive remediation and monitoring essential components of any comprehensive security response strategy.