CVE-2024-12420

6.5 MEDIUM

📋 TL;DR

This vulnerability allows unauthenticated attackers to execute arbitrary WordPress shortcodes through the WPMobile.App plugin. Attackers can potentially run malicious code, access sensitive data, or modify site content. All WordPress sites using vulnerable versions of this plugin are affected.

💻 Affected Systems

Products:
  • WPMobile.App — Android and iOS Mobile Application plugin for WordPress
Versions: All versions up to and including 11.52
Operating Systems: Any OS running WordPress
Default Config Vulnerable: ⚠️ Yes
Notes: Requires WordPress installation with the vulnerable plugin active. No special configuration needed.

⚠️ Manual Verification Required

This CVE does not have specific version information in our database, so automatic vulnerability detection cannot determine if your system is affected.

Why? The CVE database entry doesn't specify which versions are vulnerable (no version ranges provided by the vendor/NVD).

🔒 Custom verification scripts are available for registered users. Sign up free to download automated test scripts.

Recommended Actions:
  1. Review the CVE details at NVD
  2. Check vendor security advisories for your specific version
  3. Test if the vulnerability is exploitable in your environment
  4. Consider updating to the latest version as a precaution

⚠️ Risk & Real-World Impact

🔴

Worst Case

Complete site compromise through remote code execution if vulnerable shortcodes exist, leading to data theft, defacement, or malware installation.

🟠

Likely Case

Unauthorized content modification, privilege escalation, or sensitive information disclosure through existing shortcode functionality.

🟢

If Mitigated

Limited impact if no dangerous shortcodes are available, but still represents a security bypass that could be chained with other vulnerabilities.

🌐 Internet-Facing: HIGH
🏢 Internal Only: MEDIUM

🎯 Exploit Status

Public PoC: ✅ No
Weaponized: LIKELY
Unauthenticated Exploit: ⚠️ Yes
Complexity: LOW

Attack requires no authentication and leverages WordPress's built-in shortcode functionality. Exploitation depends on available shortcodes.

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: 11.53 or later

Vendor Advisory: https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&old=3207040%40wpappninja&new=3207040%40wpappninja&sfp_email=&sfph_mail=

Restart Required: No

Instructions:

1. Log into WordPress admin panel. 2. Navigate to Plugins → Installed Plugins. 3. Find 'WPMobile.App — Android and iOS Mobile Application'. 4. Click 'Update Now' if available. 5. Alternatively, download version 11.53+ from WordPress repository and manually update.

🔧 Temporary Workarounds

Disable vulnerable plugin

all

Temporarily deactivate the WPMobile.App plugin until patched

wp plugin deactivate wpappninja

Restrict access via WAF

all

Block requests to vulnerable endpoints using web application firewall

🧯 If You Can't Patch

  • Disable the WPMobile.App plugin immediately
  • Implement strict input validation and output encoding for all user-controlled data

🔍 How to Verify

Check if Vulnerable:

Check plugin version in WordPress admin under Plugins → Installed Plugins. If version is 11.52 or lower, you are vulnerable.

Check Version:

wp plugin get wpappninja --field=version

Verify Fix Applied:

Verify plugin version is 11.53 or higher after update. Test that shortcode execution requires proper authentication.

📡 Detection & Monitoring

Log Indicators:

  • Unusual shortcode execution patterns
  • Unauthenticated requests to plugin endpoints
  • Unexpected content modifications

Network Indicators:

  • HTTP requests to wpappninja endpoints with shortcode parameters from unauthenticated sources

SIEM Query:

source="wordpress" AND (uri_path="*wpappninja*" OR plugin="wpappninja") AND status="200" AND user="-"

🔗 References

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