CVE-2025-48444

5.3 MEDIUM

📋 TL;DR

This CVE describes a Missing Authorization vulnerability in Drupal's Quick Node Block module that allows attackers to perform forceful browsing to access restricted content. The vulnerability affects all Drupal sites using Quick Node Block versions before 2.0.0. Attackers can bypass intended access controls to view content they shouldn't have permission to access.

💻 Affected Systems

Products:
  • Drupal Quick Node Block
Versions: 0.0.0 through 1.x (all versions before 2.0.0)
Operating Systems: All operating systems running Drupal
Default Config Vulnerable: ⚠️ Yes
Notes: Affects all Drupal installations with Quick Node Block module enabled. The vulnerability is present in the module's access control logic.

📦 What is this software?

⚠️ Risk & Real-World Impact

🔴

Worst Case

Attackers gain unauthorized access to sensitive content, potentially exposing confidential information, user data, or administrative content that should be restricted.

🟠

Likely Case

Unauthorized users access content intended for specific user roles, potentially exposing internal information or bypassing content access controls.

🟢

If Mitigated

With proper access controls and monitoring, impact is limited to potential information disclosure of non-critical content.

🌐 Internet-Facing: HIGH - Drupal sites are typically internet-facing, and the vulnerability allows unauthenticated or low-privileged users to bypass authorization checks.
🏢 Internal Only: MEDIUM - Internal attackers could exploit this to access restricted content, but impact is limited to information disclosure rather than system compromise.

🎯 Exploit Status

Public PoC: ✅ No
Weaponized: UNKNOWN
Unauthenticated Exploit: ⚠️ Yes
Complexity: LOW - Exploitation involves simple forceful browsing techniques to access restricted URLs.

The vulnerability is straightforward to exploit by accessing specific URLs that should require authorization.

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: 2.0.0

Vendor Advisory: https://www.drupal.org/sa-contrib-2025-064

Restart Required: No

Instructions:

1. Update Quick Node Block module to version 2.0.0 or later via Drupal's update manager. 2. Clear Drupal caches after update. 3. Verify module functionality post-update.

🔧 Temporary Workarounds

Disable Quick Node Block Module

all

Temporarily disable the vulnerable module until patching is possible

drush pm-disable quick_node_block
drush cr

Implement Access Control Rules

all

Add additional access control rules at the web server or Drupal level to restrict access to vulnerable endpoints

🧯 If You Can't Patch

  • Implement strict network segmentation and firewall rules to limit access to Drupal administration interfaces
  • Enable detailed logging and monitoring for unauthorized access attempts to restricted content

🔍 How to Verify

Check if Vulnerable:

Check Quick Node Block module version in Drupal's Extend page or using drush: drush pm-list | grep quick_node_block

Check Version:

drush pm-list --fields=name,version | grep quick_node_block

Verify Fix Applied:

Verify module version is 2.0.0 or higher and test that restricted content requires proper authorization

📡 Detection & Monitoring

Log Indicators:

  • Multiple 200/403 responses for restricted content URLs
  • Access patterns showing users accessing content outside their role permissions

Network Indicators:

  • Unusual access to node-related endpoints without proper authentication headers

SIEM Query:

web_access_logs status=200 AND uri CONTAINS '/node/' AND NOT user_role IN ['admin','editor']

🔗 References

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