CVE-2024-47319
📋 TL;DR
This vulnerability allows attackers to upload malicious files to WordPress sites using the Bit Form plugin, potentially leading to code execution. It affects all WordPress installations running Bit Form plugin versions up to 2.13.10. Attackers can exploit this to take control of affected websites.
💻 Affected Systems
- Bit Form - Contact Form Plugin for WordPress
⚠️ 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.
- Review the CVE details at NVD
- Check vendor security advisories for your specific version
- Test if the vulnerability is exploitable in your environment
- Consider updating to the latest version as a precaution
⚠️ Risk & Real-World Impact
Worst Case
Complete website compromise leading to data theft, defacement, malware distribution, or use as part of a botnet.
Likely Case
Attackers upload web shells to gain persistent access, install backdoors, or deploy ransomware.
If Mitigated
File uploads are blocked or properly validated, preventing malicious file execution.
🎯 Exploit Status
Exploitation is straightforward via form submissions that allow file uploads.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 2.13.11 or later
Vendor Advisory: https://patchstack.com/database/vulnerability/bit-form/wordpress-bit-form-plugin-2-13-10-arbitrary-file-upload-vulnerability?_s_id=cve
Restart Required: No
Instructions:
1. Log into WordPress admin panel. 2. Go to Plugins > Installed Plugins. 3. Find Bit Form plugin. 4. Click 'Update Now' if available. 5. Alternatively, download latest version from WordPress repository and manually update.
🔧 Temporary Workarounds
Disable File Uploads
allTemporarily disable file upload functionality in Bit Form plugin settings.
Web Application Firewall Rules
allConfigure WAF to block uploads of executable file types (.php, .phtml, .js, etc.) to Bit Form endpoints.
🧯 If You Can't Patch
- Disable or uninstall the Bit Form plugin immediately.
- Implement strict file upload validation at the web server level (e.g., .htaccess rules to block PHP execution in upload directories).
🔍 How to Verify
Check if Vulnerable:
Check WordPress admin > Plugins > Installed Plugins for Bit Form version. If version is 2.13.10 or lower, you are vulnerable.Check Version:
wp plugin list --name=bit-form --field=versionVerify Fix Applied:
After updating, verify Bit Form plugin version is 2.13.11 or higher in WordPress admin.📡 Detection & Monitoring
Log Indicators:
- Unusual file uploads to /wp-content/uploads/bit-form/ directories
- POST requests to Bit Form endpoints with file upload parameters
- Execution of unexpected PHP files in upload directories
Network Indicators:
- HTTP POST requests with file uploads to /wp-json/bit-form/v1/ or similar Bit Form API endpoints
SIEM Query:
source="web_server_logs" AND (uri_path="/wp-json/bit-form/v1/" OR uri_path CONTAINS "bit-form") AND method="POST" AND (file_extension="php" OR file_extension="phtml" OR file_extension="js")