CVE-2025-62738
📋 TL;DR
This CVE describes a Missing Authorization vulnerability in the Formstack Online Forms WordPress plugin that allows attackers to bypass access controls. It affects all versions up to and including 2.0.2, potentially enabling unauthorized access to form data or administrative functions. WordPress administrators using vulnerable plugin versions are at risk.
💻 Affected Systems
- Formstack Online Forms 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, modify, or delete form submissions, potentially exposing sensitive user data (PII, payment info) or taking administrative control of the plugin.
Likely Case
Unauthorized viewing or manipulation of form submissions, potentially leading to data exposure or form tampering.
If Mitigated
Limited impact with proper network segmentation and minimal sensitive data in forms.
🎯 Exploit Status
Exploitation likely requires some authentication level but bypasses authorization checks. The CWE-862 classification suggests missing authorization mechanisms rather than complete authentication bypass.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Versions after 2.0.2
Restart Required: No
Instructions:
1. Log into WordPress admin panel. 2. Navigate to Plugins → Installed Plugins. 3. Find 'Formstack Online Forms'. 4. Click 'Update Now' if available. 5. Alternatively, download latest version from WordPress repository and manually update.
🔧 Temporary Workarounds
Disable Plugin
allTemporarily disable the Formstack plugin until patched
wp plugin deactivate formstack
Restrict Access
linuxUse web application firewall or .htaccess to restrict access to Formstack endpoints
# Add to .htaccess: RewriteRule ^wp-content/plugins/formstack/ - [F]
🧯 If You Can't Patch
- Implement strict network access controls to limit who can reach the WordPress instance
- Monitor for unusual access patterns to Formstack-related URLs and review form submission logs regularly
🔍 How to Verify
Check if Vulnerable:
Check WordPress admin → Plugins → Installed Plugins for Formstack version. If version is 2.0.2 or lower, you are vulnerable.Check Version:
wp plugin get formstack --field=versionVerify Fix Applied:
After updating, verify plugin version shows higher than 2.0.2 in WordPress plugins list.📡 Detection & Monitoring
Log Indicators:
- Unusual access to /wp-content/plugins/formstack/ endpoints
- Multiple failed authorization attempts followed by successful form access
- User accounts accessing forms they shouldn't have permissions for
Network Indicators:
- Unusual traffic patterns to Formstack plugin URLs from unexpected sources
- Requests bypassing normal authentication flows
SIEM Query:
source="wordpress.log" AND ("formstack" OR "/wp-content/plugins/formstack/") AND (status=200 OR status=302) AND user_agent NOT IN ["expected_user_agents"]