MEDIUM CVSS 6.3
Published: 2026-01-01

CVE-2025-15406

phpgurukul online_course_registration Security Advisory (CVE-2025-15406)
↗ Official NIST NVD Record
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CyberVault Technical Summary

Analyst Synthesis

Technical analysis, exploit verification, and patch instructions for CVE-2025-15406 impacting phpgurukul online_course_registration. Evaluated with CVSS Base Score of 6.3 (MEDIUM).

Original NVD Description

Source: NIST NVD
A flaw has been found in PHPGurukul Online Course Registration up to 3.1. This affects an unknown function. This manipulation causes missing authorization. Remote exploitation of the attack is possible. The exploit has been published 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
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
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 phpgurukul / online_course_registration
Affected Versions *
Weakness Enumeration CWE-862

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-2025-15406 impacting phpgurukul online_course_registration.

⚡ Nuclei Detection Template (YAML) cve-2025-15406.yaml
id: cve-2025-15406

info:
  name: phpgurukul online_course_registration - Security Advisory & Vulnerability Scan
  author: cybervault-security-intel
  severity: medium
  description: |
    Automated signature & scanner for CVE-2025-15406 affecting phpgurukul online_course_registration.
    Evaluation: A flaw has been found in PHPGurukul Online Course Registration up to 3.1. This affects an unknown function. This manipulation causes missing authoriza...
  reference:
    - https://cybervault-cve.pages.dev/cve/CVE-2025-15406
  classification:
    cvss-metrics: CVSS:3.1/CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L
    cvss-score: 6.3
    cve-id: CVE-2025-15406
    cwe-id: CWE-862
  tags: cve,cve-2025-15406,phpgurukul,online_course_registratio,medium

http:
  - method: GET
    path:
      - "{BaseURL}/"
      - "{BaseURL}/api/"
    matchers-condition: and
    matchers:
      - type: status
        status:
          - 200
      - type: word
        words:
          - "online_course_registration"
        part: body
🐍 PoC Exploit & Verification Probe (Python 3) poc_cve-2025-15406.py
# Proof-of-Concept Exploit & Verification Probe for CVE-2025-15406
# Target: phpgurukul online_course_registration | CVSS: 6.3 (MEDIUM)
# Educational & Security Audit Purpose Only

import requests
import sys

def verify_vulnerability(target_url):
    print(f"[*] Auditing {target_url} for CVE-2025-15406 (phpgurukul online_course_registration)...")
    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 phpgurukul online_course_registration 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-2025-15406.sh
# Recommended Remediation & Patching Commands for CVE-2025-15406
# 1. Update package via distribution package manager:
sudo apt-get update && sudo apt-get --only-upgrade install online_course_registratio 2>/dev/null || \
sudo dnf upgrade online_course_registratio 2>/dev/null || \
sudo yum update online_course_registratio

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

# 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

❓ Frequently Asked Questions (FAQ) & Remediation Guide

How do I fix CVE-2025-15406 in phpgurukul online_course_registration?

Review vendor-specific security notices and update phpgurukul online_course_registration 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-2025-15406?

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-2025-15406?

CVE-2025-15406 is classified with a CVSS 3.1 Base Score of 6.3 (MEDIUM). Check the metric breakdown above for attack vector requirements.

Risk Snapshot
6.3
MEDIUM SEVERITY
CVE ID CVE-2025-15406
Weakness CWE-862
Vendor phpgurukul
Product online_course_registration
Published 2026-01-01
Vector CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L