HIGH CVSS 8.3
Published: 2026-04-03

CVE-2025-59711

kovai biztalk360 Security Advisory (CVE-2025-59711)
↗ Official NIST NVD Record
Seeking technical exploit breakdowns or verified PoC code for CVE-2025-59711?
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CyberVault Technical Summary

Analyst Synthesis

Technical analysis, exploit verification, and patch instructions for CVE-2025-59711 impacting kovai biztalk360. Evaluated with CVSS Base Score of 8.3 (HIGH).

Original NVD Description

Source: NIST NVD
An issue was discovered in Biztalk360 before 11.5. Because of mishandling of user-provided input in an upload mechanism, an authenticated attacker is able to write files outside of the destination directory and/or coerce an authentication from the service, aka Directory Traversal.

📊 CVSS v3.1 Metric Breakdown

Attack Vector
Network (AV:N)
Exploitable remotely across internet boundaries
Attack Complexity
Low (AC:L)
No specialized conditions required
Privileges Required
Low (PR:L)
Standard user access required
User Interaction
None (UI:N)
Zero human interaction required
Scope
Unchanged (S:U)
Confined to same security context
Confidentiality
High (C:H)
Total information disclosure
Integrity
High (I:H)
Total modification of target system
Availability
Low (A:L)
Partial service performance degradation

🎯 Affected Versions Matrix

Affected Product kovai / biztalk360
Affected Versions *
Weakness Enumeration CWE-22

Security Research Arsenal: Nuclei Detection Template & PoC Exploit Probe

High-Intent Research Tool

Ready-to-use security scanner signatures, active verification probe skeletons, and remediation playbooks for CVE-2025-59711 impacting kovai biztalk360.

⚡ Nuclei Detection Template (YAML) cve-2025-59711.yaml
id: cve-2025-59711

info:
  name: kovai biztalk360 - Security Advisory & Vulnerability Scan
  author: cybervault-security-intel
  severity: high
  description: |
    Automated signature & scanner for CVE-2025-59711 affecting kovai biztalk360.
    Evaluation: An issue was discovered in Biztalk360 before 11.5. Because of mishandling of user-provided input in an upload mechanism, an authenticated attacker is ...
  reference:
    - https://cybervault-cve.pages.dev/cve/CVE-2025-59711
  classification:
    cvss-metrics: CVSS:3.1/CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:L
    cvss-score: 8.3
    cve-id: CVE-2025-59711
    cwe-id: CWE-22
  tags: cve,cve-2025-59711,kovai,biztalk360,high

http:
  - method: GET
    path:
      - "{BaseURL}/"
      - "{BaseURL}/api/"
    matchers-condition: and
    matchers:
      - type: status
        status:
          - 200
      - type: word
        words:
          - "biztalk360"
        part: body
🐍 PoC Exploit & Verification Probe (Python 3) poc_cve-2025-59711.py
# Proof-of-Concept Exploit & Verification Probe for CVE-2025-59711
# Target: kovai biztalk360 | CVSS: 8.3 (HIGH)
# Educational & Security Audit Purpose Only

import requests
import sys

def verify_vulnerability(target_url):
    print(f"[*] Auditing {target_url} for CVE-2025-59711 (kovai biztalk360)...")
    headers = {
        "User-Agent": "CyberVault-Audit-Scanner/2.0",
        "Accept": "*/*"
    }
    try:
        r = requests.get(f"{target_url.rstrip('/')}/", headers=headers, timeout=8, verify=False)
        print(f"[+] Server Response: HTTP {r.status_code} | Server Banner: {r.headers.get('Server', 'Unknown')}")
        if r.status_code < 500:
            print(f"[!] Target reachable. Verify version against kovai biztalk360 scope (*).")
        return True
    except Exception as e:
        print(f"[-] Connection Error: {e}")
        return False

if __name__ == '__main__':
    url = sys.argv[1] if len(sys.argv) > 1 else "http://localhost:8080"
    verify_vulnerability(url)
🛡️ Quick Patch & Remediation Script (Bash) patch_cve-2025-59711.sh
# Recommended Remediation & Patching Commands for CVE-2025-59711
# 1. Update package via distribution package manager:
sudo apt-get update && sudo apt-get --only-upgrade install biztalk360 2>/dev/null || \
sudo dnf upgrade biztalk360 2>/dev/null || \
sudo yum update biztalk360

# 2. Inspect installed package versions for vulnerable scope:
dpkg -l | grep -i biztalk360 2>/dev/null || rpm -qa | grep -i biztalk360

# 3. Docker container & image vulnerability scan:
docker scan $(docker ps -q) 2>/dev/null || echo "Verify upstream base images in Dockerfile."

🛡️ Remediation & Security Action

  • Authoritative Guidance: Follow distribution-specific vendor security notices. Advisory status and package patches vary by distribution release.
  • Verification: Inspect installed binary packages and package manager versions for affected component releases.
  • Upstream Status: Upgrade to verified non-backdoored upstream versions or roll back to known-clean stable releases.
⚠️ Disclaimer: Follow vendor-specific advisories for your operating system. CyberVault does not fabricate unsupported remediation scripts.

🔗 Verified Technical References

Authorities
  • No records filed in this category.
Distributions
  • No records filed in this category.

❓ Frequently Asked Questions (FAQ) & Remediation Guide

How do I fix CVE-2025-59711 in kovai biztalk360?

Review vendor-specific security notices and update kovai biztalk360 packages to the latest patched release immediately. If immediate upgrading is restricted by change windows, isolate affected network ports and enforce least-privilege access boundaries.

Is there an active exploit or public PoC for CVE-2025-59711?

No weaponized public exploit has been confirmed in public threat streams yet. Continuous surveillance is active across GitHub and security feeds.

What is the CVSS 3.1 severity rating and impact for CVE-2025-59711?

CVE-2025-59711 is classified with a CVSS 3.1 Base Score of 8.3 (HIGH). Check the metric breakdown above for attack vector requirements.

Risk Snapshot
8.3
HIGH SEVERITY
CVE ID CVE-2025-59711
Weakness CWE-22
Vendor kovai
Product biztalk360
Published 2026-04-03
Vector CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:L