CVE-2025-12466

Description

Authentication Bypass Using an Alternate Path or Channel vulnerability in Drupal Simple OAuth (OAuth2) & OpenID Connect allows Authentication Bypass.This issue affects Simple OAuth (OAuth2) & OpenID Connect: from 6.0.0 before 6.0.7.

CVSS Details

CVSS Score

7.5

Severity

HIGH

CVSS Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Configurations (Affected Products)

cpe:2.3:a:simple_oauth_project:simple_oauth:*:*:*:*:*:drupal:*:* - VULNERABLE

Drupal Simple OAuth (OAuth2) & OpenID Connect 6.0.0 - 6.0.6

PoC / Exploit Code

⚠ For Security Research Only

The following code is for security research and authorized testing only.

python

# CVE-2025-12466 - Drupal Simple OAuth Authentication Bypass PoC
# This PoC demonstrates the vulnerability concept (for defensive purposes only)

import requests
import json

TARGET_URL = "https://vulnerable-drupal-site.com"
CLIENT_ID = "your_client_id"
CLIENT_SECRET = "your_client_secret"

def check_vulnerability():
    """Check if target is vulnerable to CVE-2025-12466"""
    # Note: Actual exploitation requires specific OAuth2 implementation details
    # This is a placeholder for defensive scanning purposes
    
    endpoints = [
        f"{TARGET_URL}/oauth/authorize",
        f"{TARGET_URL}/oauth/token",
        f"{TARGET_URL}/user/login?_format=json"
    ]
    
    for endpoint in endpoints:
        try:
            response = requests.get(endpoint, timeout=10)
            # Check for authentication bypass indicators
            if response.status_code == 200:
                print(f"Endpoint accessible: {endpoint}")
        except requests.RequestException as e:
            print(f"Error accessing {endpoint}: {e}")

def main():
    print("CVE-2025-12466 Vulnerability Checker")
    print("Target: Drupal Simple OAuth < 6.0.7")
    check_vulnerability()

if __name__ == "__main__":
    main()

References

[1] CVE.org https://www.cve.org/CVERecord?id=CVE-2025-12466
[2] NVD NIST https://nvd.nist.gov/vuln/detail/CVE-2025-12466
[3] CVE Details https://www.cvedetails.com/cve/CVE-2025-12466/
[4] VulDB https://vuldb.com/cve/CVE-2025-12466
[5] https://www.drupal.org/sa-contrib-2025-114

Raw JSON Data

JSON

{"cve": {"id": "CVE-2025-12466", "sourceIdentifier": "[email protected]", "published": "2025-10-30T00:15:34.777", "lastModified": "2025-12-04T14:57:27.470", "vulnStatus": "Analyzed", "cveTags": [], "descriptions": [{"lang": "en", "value": "Authentication Bypass Using an Alternate Path or Channel vulnerability in Drupal Simple OAuth (OAuth2) & OpenID Connect allows Authentication Bypass.This issue affects Simple OAuth (OAuth2) & OpenID Connect: from 6.0.0 before 6.0.7."}], "metrics": {"cvssMetricV31": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary", "cvssData": {"version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N", "baseScore": 7.5, "baseSeverity": "HIGH", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "NONE", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "HIGH", "integrityImpact": "NONE", "availabilityImpact": "NONE"}, "exploitabilityScore": 3.9, "impactScore": 3.6}]}, "weaknesses": [{"source": "[email protected]", "type": "Secondary", "description": [{"lang": "en", "value": "CWE-288"}]}], "configurations": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:a:simple_oauth_project:simple_oauth:*:*:*:*:*:drupal:*:*", "versionStartIncluding": "6.0.0", "versionEndExcluding": "6.0.7", "matchCriteriaId": "53BDBFB7-8E88-4C2D-AB7E-A1508EC16B42"}]}]}], "references": [{"url": "https://www.drupal.org/sa-contrib-2025-114", "source": "[email protected]", "tags": ["Patch", "Vendor Advisory"]}]}}