CVE-2025-47553
📋 TL;DR
This vulnerability allows attackers to inject malicious objects through deserialization of untrusted data in the DZS Video Gallery WordPress plugin. Successful exploitation could lead to remote code execution or data manipulation. All WordPress sites using affected versions of this plugin are vulnerable.
💻 Affected Systems
- DZS Video Gallery 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
Remote code execution leading to complete system compromise, data theft, or website defacement.
Likely Case
Arbitrary file upload leading to backdoor installation and persistent access.
If Mitigated
Limited impact if proper input validation and WAF rules block malicious payloads.
🎯 Exploit Status
Exploit details are publicly available and require minimal technical skill to execute.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 12.26 or later
Restart Required: No
Instructions:
1. Log into WordPress admin panel. 2. Navigate to Plugins > Installed Plugins. 3. Find DZS Video Gallery and click 'Update Now'. 4. Verify version is 12.26 or higher.
🔧 Temporary Workarounds
Disable Plugin
allTemporarily disable the vulnerable plugin until patched.
wp plugin deactivate dzs-videogallery
WAF Rule
allAdd WAF rule to block serialized object injection attempts.
Add rule to block requests containing 'O:' followed by numbers in POST data
🧯 If You Can't Patch
- Remove plugin completely from production environment
- Implement strict network segmentation and monitor for exploitation attempts
🔍 How to Verify
Check if Vulnerable:
Check WordPress admin panel > Plugins > DZS Video Gallery version number.Check Version:
wp plugin get dzs-videogallery --field=versionVerify Fix Applied:
Confirm plugin version is 12.26 or higher in WordPress admin.📡 Detection & Monitoring
Log Indicators:
- POST requests to wp-admin/admin-ajax.php with serialized data
- PHP errors related to unserialize()
Network Indicators:
- HTTP requests containing serialized PHP objects (O:8:) in POST parameters
SIEM Query:
source="web_logs" AND uri="*/admin-ajax.php*" AND (POST_data="*O:*" OR POST_data="*serialize*")