CVE-2025-39356
📋 TL;DR
This vulnerability allows attackers to inject malicious objects through deserialization of untrusted data in the Foodbakery Sticky Cart WordPress plugin. Successful exploitation can lead to remote code execution, affecting all WordPress sites using vulnerable versions of this plugin.
💻 Affected Systems
- Foodbakery Sticky Cart 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
Complete server compromise leading to data theft, malware deployment, and lateral movement within the network.
Likely Case
Website defacement, data exfiltration, or installation of backdoors for persistent access.
If Mitigated
Limited impact if proper input validation and output encoding are implemented elsewhere.
🎯 Exploit Status
PHP object injection vulnerabilities are commonly exploited with publicly available tools.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Version after 3.2
Restart Required: No
Instructions:
1. Log into WordPress admin panel. 2. Navigate to Plugins → Installed Plugins. 3. Find 'Foodbakery Sticky Cart' and update to latest version. 4. If no update available, deactivate and remove the plugin.
🔧 Temporary Workarounds
Disable vulnerable plugin
allDeactivate the Foodbakery Sticky Cart plugin until patched
wp plugin deactivate foodbakery-sticky-cart
Restrict plugin access
allUse web application firewall to block requests to vulnerable endpoints
🧯 If You Can't Patch
- Implement strict input validation and sanitization for all user inputs
- Deploy web application firewall with rules for PHP object injection detection
🔍 How to Verify
Check if Vulnerable:
Check WordPress admin panel → Plugins → Foodbakery Sticky Cart version. If version is 3.2 or lower, you are vulnerable.Check Version:
wp plugin get foodbakery-sticky-cart --field=versionVerify Fix Applied:
Verify plugin version is higher than 3.2 and test functionality remains intact.📡 Detection & Monitoring
Log Indicators:
- Unusual POST requests to plugin endpoints
- PHP serialized data in request logs
- Unexpected file creation in wp-content/uploads
Network Indicators:
- HTTP requests containing serialized PHP objects
- Traffic to known exploit payload delivery domains
SIEM Query:
source="web_logs" AND (uri="*foodbakery*" OR uri="*sticky-cart*") AND (method="POST" OR method="PUT") AND size>1000