External risk intelligence

Drupal AI Missing Authorization Vulnerability Allows Forceful Browsing.

CVE advisorySeverity: LOW (CVSS 3.3)

CVE-2026-13235

The vulnerability affects a Drupal module, which is a component of a web application. Drupal sites are commonly deployed as public-facing web applications, making the module's functionality accessible via the internet in standard deployment patterns.

Artificial Intelligence Project Artificial Intelligence

before 1.2.171.3.0 to before 1.3.81.4.0 to before 1.4.3

Halo Surface Signal: 4 out of 5 — likely to be public-facing.

External exposure likelihood

Horizon Alert

Summary of the vulnerability and why it matters

A critical security vulnerability has been identified in a Drupal AI module, impacting its authorization controls. This issue could allow unauthorized access to the system, potentially leading to significant data compromise and disruption if exploited. The main concern is confirming the relevance and exposure of this module within our technology environment.

  • Unauthorized access to AI features.
  • Matters if Drupal AI is deployed.
  • Confirm use and assess exposure.

Attack Path

How an attacker could exploit the issue

An attacker could exploit this vulnerability by sending a crafted request to a Drupal website that uses the AI module. This would bypass intended access controls, allowing them to view or manipulate information beyond their authorized permissions, potentially leading to significant data compromise or modification.

  • Unauthenticated network access required.
  • Forceful browsing to unauthorized AI module areas.
  • Data exposure and modification risk.

Live Threat

Current exploitation, exposure, and threat context

This vulnerability could allow an unauthenticated user to access restricted AI model data or functionality. When supported by the advisory, this could impact the integrity and availability of AI-driven services.

  • AI model data or functions.
  • Unauthenticated network access.
  • Compromised AI service integrity.

Operational Fix

Recommended remediation, mitigation, and detection steps

This critical vulnerability in Drupal AI's authorization is likely to impact organizations running Drupal websites. The first practical step is to identify all instances of the affected Drupal AI module, determine their exposure, and confirm business criticality. Once identified, assign ownership to the appropriate team (e.g., Drupal application owners, platform teams, or security teams) to prioritize and plan remediation based on risk and operational impact.

  • Assign ownership to the application team.
  • Verify module usage and exposure.
  • Plan risk-based remediation.

Supplementary metadata

Validate whether this threat affects your internet-facing exposure.

Halo Threat Intelligence helps prioritize remediation with Halo Surface Signal and H/A/L/O context. Start exposure validation with a free external attack surface trial.

Frequently asked questions

What is the Drupal AI module?

The Drupal AI module serves as an integration layer for Drupal websites, enabling administrators to incorporate generative artificial intelligence features and model interactions into their content management workflows.

How is the vulnerability in Drupal AI classified?

The vulnerability is categorized as CWE-862, which signifies a Missing Authorization weakness. This flaw indicates that the software does not correctly verify whether a user has the appropriate permissions to access specific functions or resources.

How does this vulnerability enable forceful browsing?

Because the module lacks proper authorization checks, an unauthenticated user can directly access restricted AI service endpoints via the network. This bypasses access controls, allowing individuals to view or interact with sensitive AI data or functions without login credentials.

Why is this Drupal AI security issue relevant to modern web environments?

According to the Halo Surface Signal, this vulnerability is considered likely to be encountered because it affects a Drupal module commonly deployed in public-facing web applications. Its internet-accessible nature significantly increases the risk profile for organizations utilizing this software.

What is the recommended approach for managing this risk?

Security teams should immediately audit their Drupal environments to identify if the affected AI module is installed. Once located, verify the exposure level, assign clear ownership to the responsible application team, and prioritize remediation based on the specific business criticality of the affected services.

References