CVE-2024-10536
📋 TL;DR
The FancyPost WordPress plugin has an authorization vulnerability that allows authenticated users with Subscriber-level access or higher to export shortcodes without proper permission checks. This affects all WordPress sites using FancyPost plugin versions up to 6.0.0. Attackers can access potentially sensitive shortcode data they shouldn't have permission to view.
💻 Affected Systems
- FancyPost – Best Ultimate Post Block, Post Grid, Layouts, Carousel, Slider For Gutenberg & Elementor 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 export all shortcodes containing sensitive information like API keys, database credentials, or other configuration data embedded in shortcodes, leading to data exposure and potential further compromise.
Likely Case
Attackers export shortcodes to understand site structure and potentially find other vulnerabilities or sensitive information stored within shortcode parameters.
If Mitigated
With proper access controls and monitoring, impact is limited to unauthorized viewing of shortcode data without execution capabilities.
🎯 Exploit Status
Exploitation requires authenticated access but is technically simple. The vulnerability is publicly documented with code references.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 6.0.1 or later
Vendor Advisory: https://plugins.trac.wordpress.org/changeset/3159998/post-block/trunk/custom-fields/options/admin-backup.php
Restart Required: No
Instructions:
1. Log into WordPress admin panel. 2. Navigate to Plugins → Installed Plugins. 3. Find FancyPost plugin. 4. Click 'Update Now' if update available. 5. Alternatively, download version 6.0.1+ from WordPress repository and manually update.
🔧 Temporary Workarounds
Remove vulnerable plugin
allTemporarily disable or remove the FancyPost plugin until patched
wp plugin deactivate post-block
wp plugin delete post-block
Restrict user registration
allDisable new user registration to prevent attackers from obtaining Subscriber accounts
🧯 If You Can't Patch
- Implement strict access controls and monitor for unauthorized shortcode export attempts
- Remove Subscriber role access entirely or implement additional authentication layers
🔍 How to Verify
Check if Vulnerable:
Check WordPress admin → Plugins → FancyPost version. If version is 6.0.0 or lower, you are vulnerable.Check Version:
wp plugin get post-block --field=versionVerify Fix Applied:
Verify plugin version is 6.0.1 or higher in WordPress admin panel.📡 Detection & Monitoring
Log Indicators:
- Unusual POST requests to admin-ajax.php with 'action' parameter containing 'handle_block_shortcode_export'
- Multiple shortcode export requests from single user accounts
Network Indicators:
- HTTP requests to /wp-admin/admin-ajax.php with export-related parameters from non-admin users
SIEM Query:
source="wordpress.log" AND "admin-ajax.php" AND "handle_block_shortcode_export"