MEDIUM CVSS 6.4
Published: 2024-10-04

CVE-2024-9421

prontotools login_logout_shortcode Security Advisory (CVE-2024-9421)
↗ Official NIST NVD Record
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CyberVault Technical Summary

Analyst Synthesis

Technical analysis, exploit verification, and patch instructions for CVE-2024-9421 impacting prontotools login_logout_shortcode. Evaluated with CVSS Base Score of 6.4 (MEDIUM).

Original NVD Description

Source: NIST NVD
The Login Logout Shortcode plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'class' parameter in all versions up to, and including, 1.1.0 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with Contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.

📊 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
Changed (S:C)
Impacts components beyond caller authority
Confidentiality
Low (C:L)
Partial information leakage
Integrity
Low (I:L)
Partial data modification possible
Availability
None (A:N)
No system availability impact

🎯 Affected Versions Matrix

Affected Product prontotools / login_logout_shortcode
Affected Versions *
Weakness Enumeration CWE-79

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-2024-9421 impacting prontotools login_logout_shortcode.

⚡ Nuclei Detection Template (YAML) cve-2024-9421.yaml
id: cve-2024-9421

info:
  name: prontotools login_logout_shortcode - Security Advisory & Vulnerability Scan
  author: cybervault-security-intel
  severity: medium
  description: |
    Automated signature & scanner for CVE-2024-9421 affecting prontotools login_logout_shortcode.
    Evaluation: The Login Logout Shortcode plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'class' parameter in all versions up to...
  reference:
    - https://cybervault-cve.pages.dev/cve/CVE-2024-9421
  classification:
    cvss-metrics: CVSS:3.1/CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N
    cvss-score: 6.4
    cve-id: CVE-2024-9421
    cwe-id: CWE-79
  tags: cve,cve-2024-9421,prontotools,login_logout_shortcode,medium

http:
  - method: GET
    path:
      - "{BaseURL}/"
      - "{BaseURL}/api/"
    matchers-condition: and
    matchers:
      - type: status
        status:
          - 200
      - type: word
        words:
          - "login_logout_shortcode"
        part: body
🐍 PoC Exploit & Verification Probe (Python 3) poc_cve-2024-9421.py
# Proof-of-Concept Exploit & Verification Probe for CVE-2024-9421
# Target: prontotools login_logout_shortcode | CVSS: 6.4 (MEDIUM)
# Educational & Security Audit Purpose Only

import requests
import sys

def verify_vulnerability(target_url):
    print(f"[*] Auditing {target_url} for CVE-2024-9421 (prontotools login_logout_shortcode)...")
    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 prontotools login_logout_shortcode 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-2024-9421.sh
# Recommended Remediation & Patching Commands for CVE-2024-9421
# 1. Update package via distribution package manager:
sudo apt-get update && sudo apt-get --only-upgrade install login_logout_shortcode 2>/dev/null || \
sudo dnf upgrade login_logout_shortcode 2>/dev/null || \
sudo yum update login_logout_shortcode

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

# 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-2024-9421 in prontotools login_logout_shortcode?

Review vendor-specific security notices and update prontotools login_logout_shortcode 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-2024-9421?

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-2024-9421?

CVE-2024-9421 is classified with a CVSS 3.1 Base Score of 6.4 (MEDIUM). Check the metric breakdown above for attack vector requirements.

Risk Snapshot
6.4
MEDIUM SEVERITY
CVE ID CVE-2024-9421
Weakness CWE-79
Vendor prontotools
Product login_logout_shortcode
Published 2024-10-04
Vector CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N