MEDIUM CVSS 5.3
Published: 2025-04-28

CVE-2025-4015

xxyopen novel-plus Security Advisory (CVE-2025-4015)
↗ Official NIST NVD Record
Seeking technical exploit breakdowns or verified PoC code for CVE-2025-4015?
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CyberVault Technical Summary

Analyst Synthesis

Technical analysis, exploit verification, and patch instructions for CVE-2025-4015 impacting xxyopen novel-plus. Evaluated with CVSS Base Score of 5.3 (MEDIUM).

Original NVD Description

Source: NIST NVD
A vulnerability was found in 20120630 Novel-Plus up to 0e156c04b4b7ce0563bef6c97af4476fcda8f160. It has been rated as critical. Affected by this issue is the function list of the file novel-system/src/main/java/com/java2nb/system/controller/SessionController.java. The manipulation leads to missing authentication. The attack may be launched remotely. The exploit has been disclosed to the public and may be used. The vendor was contacted early about this disclosure but did not respond in any way.

📊 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
None (PR:N)
Unauthenticated execution
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
None (I:N)
No system modification impact
Availability
None (A:N)
No system availability impact

🎯 Affected Versions Matrix

Affected Product xxyopen / novel-plus
Affected Versions *
Weakness Enumeration CWE-287

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-2025-4015 impacting xxyopen novel-plus.

⚡ Nuclei Detection Template (YAML) cve-2025-4015.yaml
id: cve-2025-4015

info:
  name: xxyopen novel-plus - Security Advisory & Vulnerability Scan
  author: cybervault-security-intel
  severity: medium
  description: |
    Automated signature & scanner for CVE-2025-4015 affecting xxyopen novel-plus.
    Evaluation: A vulnerability was found in 20120630 Novel-Plus up to 0e156c04b4b7ce0563bef6c97af4476fcda8f160. It has been rated as critical. Affected by this issue...
  reference:
    - https://cybervault-cve.pages.dev/cve/CVE-2025-4015
  classification:
    cvss-metrics: CVSS:3.1/CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
    cvss-score: 5.3
    cve-id: CVE-2025-4015
    cwe-id: CWE-287
  tags: cve,cve-2025-4015,xxyopen,novel-plus,medium

http:
  - method: GET
    path:
      - "{BaseURL}/"
      - "{BaseURL}/api/"
    matchers-condition: and
    matchers:
      - type: status
        status:
          - 200
      - type: word
        words:
          - "novel-plus"
        part: body
🐍 PoC Exploit & Verification Probe (Python 3) poc_cve-2025-4015.py
# Proof-of-Concept Exploit & Verification Probe for CVE-2025-4015
# Target: xxyopen novel-plus | CVSS: 5.3 (MEDIUM)
# Educational & Security Audit Purpose Only

import requests
import sys

def verify_vulnerability(target_url):
    print(f"[*] Auditing {target_url} for CVE-2025-4015 (xxyopen novel-plus)...")
    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 xxyopen novel-plus 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-2025-4015.sh
# Recommended Remediation & Patching Commands for CVE-2025-4015
# 1. Update package via distribution package manager:
sudo apt-get update && sudo apt-get --only-upgrade install novel-plus 2>/dev/null || \
sudo dnf upgrade novel-plus 2>/dev/null || \
sudo yum update novel-plus

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

# 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-2025-4015 in xxyopen novel-plus?

Review vendor-specific security notices and update xxyopen novel-plus 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-2025-4015?

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-2025-4015?

CVE-2025-4015 is classified with a CVSS 3.1 Base Score of 5.3 (MEDIUM). Check the metric breakdown above for attack vector requirements.

Risk Snapshot
5.3
MEDIUM SEVERITY
CVE ID CVE-2025-4015
Weakness CWE-287
Vendor xxyopen
Product novel-plus
Published 2025-04-28
Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N