CVE-2023-47838
📋 TL;DR
This vulnerability allows attackers to bypass authorization controls in the Conditional Fields for Contact Form 7 WordPress plugin, potentially accessing or modifying form data they shouldn't have permission to view. It affects all WordPress sites using this plugin from any version up to 2.4.1.
💻 Affected Systems
- Conditional Fields for Contact Form 7 WordPress Plugin
⚠️ 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
Attackers could access sensitive form submissions containing personal data, payment information, or other confidential user inputs submitted through affected forms.
Likely Case
Unauthorized viewing of form submissions containing moderate sensitivity data like contact information, survey responses, or basic user details.
If Mitigated
With proper access controls and monitoring, impact is limited to potential data exposure of non-critical form submissions.
🎯 Exploit Status
Exploitation requires some level of access but authorization bypass makes it relatively simple for authenticated attackers.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 2.4.2 or later
Restart Required: No
Instructions:
1. Log into WordPress admin panel. 2. Navigate to Plugins > Installed Plugins. 3. Find 'Conditional Fields for Contact Form 7'. 4. Click 'Update Now' if available, or download version 2.4.2+ from WordPress repository. 5. Activate updated plugin.
🔧 Temporary Workarounds
Disable Plugin
allTemporarily disable the vulnerable plugin until patched
wp plugin deactivate cf7-conditional-fields
Restrict Access
allImplement additional access controls at web server or application level
🧯 If You Can't Patch
- Implement strict access controls at the web server level to restrict access to form submission endpoints
- Enable detailed logging of all form access attempts and monitor for unauthorized access patterns
🔍 How to Verify
Check if Vulnerable:
Check WordPress admin panel > Plugins > Conditional Fields for Contact Form 7 > Version numberCheck Version:
wp plugin get cf7-conditional-fields --field=versionVerify Fix Applied:
Verify plugin version is 2.4.2 or higher in WordPress admin plugins page📡 Detection & Monitoring
Log Indicators:
- Unusual access patterns to form submission endpoints
- Multiple failed authorization attempts followed by successful access
Network Indicators:
- Unusual requests to /wp-content/plugins/cf7-conditional-fields/ endpoints
SIEM Query:
source="wordpress" AND (uri_path="/wp-admin/admin-ajax.php" OR uri_path CONTAINS "cf7-conditional-fields") AND response_code=200 AND user_agent NOT IN ["normal_user_agents"]