CVE-2025-31422
📋 TL;DR
This vulnerability allows attackers to inject malicious objects through deserialization of untrusted data in the Visual Art | Gallery WordPress theme. Attackers could execute arbitrary code, potentially compromising the entire WordPress site. All WordPress installations using affected versions of this theme are vulnerable.
💻 Affected Systems
- Visual Art | Gallery WordPress Theme
⚠️ 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, ransomware deployment, or persistent backdoor installation.
Likely Case
Website defacement, malware injection, or credential theft from the WordPress database.
If Mitigated
Limited impact if proper web application firewalls and input validation are in place.
🎯 Exploit Status
Deserialization vulnerabilities are commonly exploited and tooling exists for PHP object injection attacks.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Version 2.5 or later
Restart Required: No
Instructions:
1. Log into WordPress admin panel
2. Navigate to Appearance > Themes
3. Check if Visual Art | Gallery theme is active
4. Update theme to version 2.5 or later
5. If update not available, switch to default theme immediately
🔧 Temporary Workarounds
Disable vulnerable theme
allSwitch to a different WordPress theme until patch is applied
wp theme activate twentytwentyfour
Web Application Firewall rule
allBlock deserialization attempts at WAF level
Add rule to block requests containing serialized PHP objects
🧯 If You Can't Patch
- Remove theme completely and use alternative gallery solution
- Implement strict input validation and sanitization for all theme inputs
🔍 How to Verify
Check if Vulnerable:
Check WordPress admin panel > Appearance > Themes for Visual Art | Gallery theme version 2.4 or earlierCheck Version:
wp theme list --field=name,status,version | grep 'Visual Art'Verify Fix Applied:
Confirm theme version is 2.5 or later in WordPress admin panel📡 Detection & Monitoring
Log Indicators:
- Unusual POST requests to theme files
- PHP deserialization errors in logs
- Unexpected file uploads or modifications
Network Indicators:
- HTTP requests containing serialized PHP objects
- Traffic to unfamiliar endpoints in theme directory
SIEM Query:
source="web_logs" AND (uri="*visual-art*" OR uri="*gallery*" OR uri="*theme*" AND (method="POST" OR method="PUT")) AND (payload="O:" OR payload="a:" OR payload="s:")