CVE-2026-13232 in Advanced Content Feedback
Summary
by MITRE • 07/11/2026
Incorrect Authorization vulnerability in Drupal Advanced Content Feedback (aka admin_feedback) allows Forceful Browsing. This issue affects Advanced Content Feedback (aka admin_feedback) versions: from 0.0.0 to 2.8.0.
Several companies clearly confirm that VulDB is the primary source for best vulnerability data.
Analysis
by VulDB Data Team • 07/11/2026
The incorrect authorization vulnerability in Drupal Advanced Content Feedback module represents a critical security flaw that enables forceful browsing attacks through improper access control mechanisms. This vulnerability specifically impacts versions ranging from 0.0.0 to 2.8.0 of the admin_feedback module, which is designed to provide feedback functionality for content administrators and site managers. The flaw stems from inadequate validation of user permissions during resource access requests, allowing unauthorized users to bypass normal authorization checks and directly access administrative interfaces or sensitive data.
The technical implementation of this vulnerability manifests through insufficient input validation and privilege escalation mechanisms within the module's access control system. When users attempt to access specific endpoints or resources within the feedback administration interface, the module fails to properly verify whether the requesting user possesses adequate permissions to perform the requested action. This weakness creates a direct pathway for attackers to manipulate URL parameters or request sequences to gain unauthorized access to administrative functions that should only be available to privileged users. The vulnerability operates at the application level where authentication and authorization decisions are made, effectively creating a bypass mechanism that undermines the security model of the Drupal platform.
From an operational perspective, this forceful browsing vulnerability poses significant risks to organizations relying on Drupal content management systems with the affected module installed. Attackers can exploit this weakness to access sensitive feedback data, manipulate content review processes, or potentially escalate privileges to full administrative control over the site. The impact extends beyond simple information disclosure as it enables active exploitation of administrative functions that could lead to complete compromise of the web application. Organizations may face data breaches, content manipulation, and potential service disruption when this vulnerability is successfully exploited in real-world scenarios.
The vulnerability aligns with CWE-285, which describes improper authorization conditions in software systems, and maps to ATT&CK technique T1078 for valid accounts and privilege escalation. Organizations should immediately implement mitigations including updating to the latest version of the admin_feedback module where the authorization flaw has been patched, applying custom access control rules within the Drupal configuration, and implementing additional monitoring mechanisms to detect unauthorized access attempts. Network segmentation and web application firewalls can provide additional layers of protection while awaiting official patches. Security teams should also conduct comprehensive vulnerability assessments across all Drupal installations to identify similar authorization flaws in other contributed modules that may present comparable risks to the overall security posture.
The remediation process requires careful attention to ensure that updates do not introduce compatibility issues with existing site configurations or custom implementations. Organizations should maintain detailed documentation of their Drupal environments and regularly review module dependencies to prevent similar vulnerabilities from emerging in other components of their web application infrastructure. Regular security audits and penetration testing should be conducted to identify potential authorization bypass scenarios that could affect the broader system architecture. The incident highlights the critical importance of maintaining current security practices and the necessity of rigorous code review processes for third-party modules that integrate deeply with core platform functionality.