CVE-2025-49414

10.0 CRITICAL

📋 TL;DR

This vulnerability allows attackers to upload malicious files to WordPress sites running FW Gallery plugin. Attackers can upload dangerous file types like PHP scripts, potentially leading to complete system compromise. All WordPress sites using FW Gallery versions up to 8.0.0 are affected.

💻 Affected Systems

Products:
  • FW Gallery WordPress Plugin
Versions: All versions up to and including 8.0.0
Operating Systems: Any OS running WordPress
Default Config Vulnerable: ⚠️ Yes
Notes: Requires plugin to be installed and active on WordPress site.

⚠️ 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

Full server compromise via remote code execution, data theft, site defacement, and malware distribution.

🟠

Likely Case

Webshell upload leading to unauthorized access, data exfiltration, and further attacks on the WordPress environment.

🟢

If Mitigated

Limited impact if file uploads are restricted at web server level or WAF blocks malicious uploads.

🌐 Internet-Facing: HIGH
🏢 Internal Only: MEDIUM

🎯 Exploit Status

Public PoC: ⚠️ Yes
Weaponized: LIKELY
Unauthenticated Exploit: ⚠️ Yes
Complexity: LOW

Simple file upload exploitation with public proof-of-concept available.

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: 8.0.1 or later

Vendor Advisory: https://patchstack.com/database/wordpress/plugin/fw-gallery/vulnerability/wordpress-fw-gallery-8-0-0-arbitrary-file-upload-vulnerability?_s_id=cve

Restart Required: No

Instructions:

1. Log into WordPress admin panel. 2. Navigate to Plugins → Installed Plugins. 3. Find FW Gallery and click 'Update Now'. 4. Verify version is 8.0.1 or higher.

🔧 Temporary Workarounds

Disable Plugin

all

Temporarily disable FW Gallery plugin until patched

wp plugin deactivate fw-gallery

Restrict File Uploads

linux

Configure web server to block uploads of executable files

# Add to .htaccess for Apache:
<FilesMatch "\.(php|phtml|php3|php4|php5|php7|phps|php8|inc|pl|py|jsp|asp|aspx|cgi|sh|bash|exe|dll|bat|cmd|ps1|psm1|psd1|vbs|vbe|js|jse|wsf|wsh|msc|jar|war|ear|sh|bash|zsh|ksh|csh|tcsh|fish)$">
    Order Allow,Deny
    Deny from all
</FilesMatch>

🧯 If You Can't Patch

  • Remove upload directory write permissions for web server user
  • Implement web application firewall rules to block malicious file uploads

🔍 How to Verify

Check if Vulnerable:

Check WordPress admin panel → Plugins → Installed Plugins for FW Gallery version

Check Version:

wp plugin get fw-gallery --field=version

Verify Fix Applied:

Verify FW Gallery version is 8.0.1 or higher in WordPress admin

📡 Detection & Monitoring

Log Indicators:

  • Unusual file uploads to gallery directories
  • POST requests to upload endpoints with suspicious file extensions

Network Indicators:

  • HTTP POST requests to /wp-content/plugins/fw-gallery/ upload endpoints

SIEM Query:

source="web_server" AND (uri_path="/wp-content/plugins/fw-gallery/" AND method="POST" AND (file_extension="php" OR file_extension="exe" OR file_extension="sh"))

🔗 References

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