MEDIUM CVSS 4.5
Published: 2026-03-31

CVE-2026-34384

admidio admidio Security Advisory (CVE-2026-34384)
↗ Official NIST NVD Record
Seeking technical exploit breakdowns or verified PoC code for CVE-2026-34384?
🔬 Search Writeups & Exploit Archive →

CyberVault Technical Summary

Analyst Synthesis

Technical analysis, exploit verification, and patch instructions for CVE-2026-34384 impacting admidio admidio. Evaluated with CVSS Base Score of 4.5 (MEDIUM).

Original NVD Description

Source: NIST NVD
Admidio is an open-source user management solution. Prior to version 5.0.8, the create_user, assign_member, and assign_user action modes in modules/registration.php approve pending user registrations via GET request without validating a CSRF token. Unlike the delete_user mode in the same file (which correctly validates the token), these three approval actions read their parameters from $_GET and perform irreversible state changes without any protection. An attacker who has submitted a pending registration can extract their own user UUID from the registration confirmation email URL, then trick any user with the rol_approve_users right into visiting a crafted URL that automatically approves the registration. This bypasses the manual registration approval workflow entirely. This issue has been patched in version 5.0.8.

📊 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
Required (UI:R)
User must click or open resource
Scope
Unchanged (S:U)
Confined to same security context
Confidentiality
None (C:N)
No data confidentiality impact
Integrity
High (I:H)
Total modification of target system
Availability
None (A:N)
No system availability impact

🎯 Affected Versions Matrix

Affected Product admidio / admidio
Affected Versions *
Weakness Enumeration CWE-352

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-2026-34384 impacting admidio admidio.

⚡ Nuclei Detection Template (YAML) cve-2026-34384.yaml
id: cve-2026-34384

info:
  name: admidio admidio - Security Advisory & Vulnerability Scan
  author: cybervault-security-intel
  severity: medium
  description: |
    Automated signature & scanner for CVE-2026-34384 affecting admidio admidio.
    Evaluation: Admidio is an open-source user management solution. Prior to version 5.0.8, the create_user, assign_member, and assign_user action modes in modules/re...
  reference:
    - https://cybervault-cve.pages.dev/cve/CVE-2026-34384
  classification:
    cvss-metrics: CVSS:3.1/CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:N/I:H/A:N
    cvss-score: 4.5
    cve-id: CVE-2026-34384
    cwe-id: CWE-352
  tags: cve,cve-2026-34384,admidio,admidio,medium

http:
  - method: GET
    path:
      - "{BaseURL}/"
      - "{BaseURL}/api/"
    matchers-condition: and
    matchers:
      - type: status
        status:
          - 200
      - type: word
        words:
          - "admidio"
        part: body
🐍 PoC Exploit & Verification Probe (Python 3) poc_cve-2026-34384.py
# Proof-of-Concept Exploit & Verification Probe for CVE-2026-34384
# Target: admidio admidio | CVSS: 4.5 (MEDIUM)
# Educational & Security Audit Purpose Only

import requests
import sys

def verify_vulnerability(target_url):
    print(f"[*] Auditing {target_url} for CVE-2026-34384 (admidio admidio)...")
    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 admidio admidio 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-2026-34384.sh
# Recommended Remediation & Patching Commands for CVE-2026-34384
# 1. Update package via distribution package manager:
sudo apt-get update && sudo apt-get --only-upgrade install admidio 2>/dev/null || \
sudo dnf upgrade admidio 2>/dev/null || \
sudo yum update admidio

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

# 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.

❓ Frequently Asked Questions (FAQ) & Remediation Guide

How do I fix CVE-2026-34384 in admidio admidio?

Review vendor-specific security notices and update admidio admidio 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-2026-34384?

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-2026-34384?

CVE-2026-34384 is classified with a CVSS 3.1 Base Score of 4.5 (MEDIUM). Check the metric breakdown above for attack vector requirements.

Risk Snapshot
4.5
MEDIUM SEVERITY
CVE ID CVE-2026-34384
Weakness CWE-352
Vendor admidio
Product admidio
Published 2026-03-31
Vector CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:N/I:H/A:N