CVE-2025-66167

Description

Missing Authorization vulnerability in merkulove Lottier lottier-gutenberg allows Exploiting Incorrectly Configured Access Control Security Levels.This issue affects Lottier: from n/a through <= 1.1.1.

CVSS Details

CVSS Score

5.4

Severity

MEDIUM

CVSS Vector

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

Configurations (Affected Products)

No configuration data available.

Lottier (lottier-gutenberg) <= 1.1.1

PoC / Exploit Code

⚠ For Security Research Only

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

python

import requests
import sys

# CVE-2025-66167 PoC - Missing Authorization in Lottier Plugin
# Target: WordPress site with Lottier plugin <= 1.1.1

def check_vulnerability(target_url):
    """
    Check if the target WordPress site is vulnerable to CVE-2025-66167
    """
    # Get WordPress nonce using low-privilege account
    # Note: This PoC demonstrates the concept; actual exploitation requires valid session
    
    target_url = target_url.rstrip('/')
    
    # Common Lottier AJAX endpoints
    endpoints = [
        '/wp-admin/admin-ajax.php',
        '/wp-json/lottier/v1/'
    ]
    
    print(f'[*] Testing target: {target_url}')
    print(f'[*] Vulnerability: Missing Authorization in Lottier <= 1.1.1')
    print(f'[*] CVSS Score: 5.4 (Medium)')
    
    # The vulnerability allows low-privilege users to access admin functions
    # Example: Accessing restricted Lottier settings without proper authorization
    
    # Note: Actual PoC requires authenticated session with subscriber-level access
    # Attacker can then trigger privileged actions that should require admin capabilities
    
    return True

if __name__ == '__main__':
    if len(sys.argv) < 2:
        print('Usage: python cve-2025-66167.py <target_url>')
        sys.exit(1)
    
    check_vulnerability(sys.argv[1])

References

[1] CVE.org https://www.cve.org/CVERecord?id=CVE-2025-66167
[2] NVD NIST https://nvd.nist.gov/vuln/detail/CVE-2025-66167
[3] CVE Details https://www.cvedetails.com/cve/CVE-2025-66167/
[4] VulDB https://vuldb.com/cve/CVE-2025-66167
[5] https://patchstack.com/database/Wordpress/Plugin/lottier-gutenberg/vulnerability/wordpress-lottier-plugin-1-1-1-broken-access-control-vulnerability?_s_id=cve

Raw JSON Data

JSON

{"cve": {"id": "CVE-2025-66167", "sourceIdentifier": "[email protected]", "published": "2025-12-16T09:15:59.057", "lastModified": "2026-04-15T00:35:42.020", "vulnStatus": "Deferred", "cveTags": [], "descriptions": [{"lang": "en", "value": "Missing Authorization vulnerability in merkulove Lottier lottier-gutenberg allows Exploiting Incorrectly Configured Access Control Security Levels.This issue affects Lottier: from n/a through <= 1.1.1."}], "metrics": {"cvssMetricV31": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary", "cvssData": {"version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N", "baseScore": 5.4, "baseSeverity": "MEDIUM", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "LOW", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "LOW", "integrityImpact": "LOW", "availabilityImpact": "NONE"}, "exploitabilityScore": 2.8, "impactScore": 2.5}]}, "weaknesses": [{"source": "[email protected]", "type": "Secondary", "description": [{"lang": "en", "value": "CWE-862"}]}], "references": [{"url": "https://patchstack.com/database/Wordpress/Plugin/lottier-gutenberg/vulnerability/wordpress-lottier-plugin-1-1-1-broken-access-control-vulnerability?_s_id=cve", "source": "[email protected]"}]}}