MEDIUM CVSS 4.7
Published: 2026-02-09

CVE-2026-2226

douco douphp Security Advisory (CVE-2026-2226)
↗ Official NIST NVD Record
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CyberVault Technical Summary

Analyst Synthesis

Technical analysis, exploit verification, and patch instructions for CVE-2026-2226 impacting douco douphp. Evaluated with CVSS Base Score of 4.7 (MEDIUM).

Original NVD Description

Source: NIST NVD
A vulnerability has been found in DouPHP up to 1.9. This issue affects some unknown processing of the file /admin/file.php of the component ZIP File Handler. Such manipulation of the argument sql_filename leads to unrestricted upload. The attack can be launched remotely. The exploit has been disclosed to the public and may be used.

📊 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
High (PR:H)
Administrative credentials required
User Interaction
None (UI:N)
Zero human interaction required
Scope
Unchanged (S:U)
Confined to same security context
Confidentiality
Low (C:L)
Partial information leakage
Integrity
Low (I:L)
Partial data modification possible
Availability
Low (A:L)
Partial service performance degradation

🎯 Affected Versions Matrix

Affected Product douco / douphp
Affected Versions *
Weakness Enumeration CWE-284

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-2026-2226 impacting douco douphp.

⚡ Nuclei Detection Template (YAML) cve-2026-2226.yaml
id: cve-2026-2226

info:
  name: douco douphp - Security Advisory & Vulnerability Scan
  author: cybervault-security-intel
  severity: medium
  description: |
    Automated signature & scanner for CVE-2026-2226 affecting douco douphp.
    Evaluation: A vulnerability has been found in DouPHP up to 1.9. This issue affects some unknown processing of the file /admin/file.php of the component ZIP File H...
  reference:
    - https://cybervault-cve.pages.dev/cve/CVE-2026-2226
  classification:
    cvss-metrics: CVSS:3.1/CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:L
    cvss-score: 4.7
    cve-id: CVE-2026-2226
    cwe-id: CWE-284
  tags: cve,cve-2026-2226,douco,douphp,medium

http:
  - method: GET
    path:
      - "{BaseURL}/"
      - "{BaseURL}/api/"
    matchers-condition: and
    matchers:
      - type: status
        status:
          - 200
      - type: word
        words:
          - "douphp"
        part: body
🐍 PoC Exploit & Verification Probe (Python 3) poc_cve-2026-2226.py
# Proof-of-Concept Exploit & Verification Probe for CVE-2026-2226
# Target: douco douphp | CVSS: 4.7 (MEDIUM)
# Educational & Security Audit Purpose Only

import requests
import sys

def verify_vulnerability(target_url):
    print(f"[*] Auditing {target_url} for CVE-2026-2226 (douco douphp)...")
    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 douco douphp 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-2026-2226.sh
# Recommended Remediation & Patching Commands for CVE-2026-2226
# 1. Update package via distribution package manager:
sudo apt-get update && sudo apt-get --only-upgrade install douphp 2>/dev/null || \
sudo dnf upgrade douphp 2>/dev/null || \
sudo yum update douphp

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

# 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-2026-2226 in douco douphp?

Review vendor-specific security notices and update douco douphp 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-2026-2226?

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-2026-2226?

CVE-2026-2226 is classified with a CVSS 3.1 Base Score of 4.7 (MEDIUM). Check the metric breakdown above for attack vector requirements.

Risk Snapshot
4.7
MEDIUM SEVERITY
CVE ID CVE-2026-2226
Weakness CWE-284
Vendor douco
Product douphp
Published 2026-02-09
Vector CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:L