CVE-2025-31069
📋 TL;DR
This vulnerability allows attackers to inject malicious objects through deserialization of untrusted data in the HotStar WordPress theme. Successful exploitation could lead to remote code execution, data theft, or complete site compromise. All WordPress sites using HotStar theme versions up to 1.4 are affected.
💻 Affected Systems
- HotStar – Multi-Purpose Business 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 exfiltration, ransomware deployment, or use as attack platform
Likely Case
Website defacement, admin access takeover, or malware injection
If Mitigated
Limited impact if proper WAF rules and input validation are in place
🎯 Exploit Status
PHP object injection vulnerabilities are commonly exploited in WordPress environments
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 1.5 or later
Restart Required: No
Instructions:
1. Log into WordPress admin panel
2. Navigate to Appearance > Themes
3. Update HotStar theme to version 1.5 or later
4. Clear WordPress cache if applicable
🔧 Temporary Workarounds
Disable vulnerable theme
allTemporarily switch to default WordPress theme
wp theme activate twentytwentyfour
Add WAF rule
linuxBlock serialized PHP object patterns
ModSecurity: SecRule ARGS "@rx O:[0-9]+:" "id:1001,phase:2,deny,status:403"
🧯 If You Can't Patch
- Implement strict input validation for all user-supplied data
- Deploy web application firewall with PHP object injection rules
🔍 How to Verify
Check if Vulnerable:
Check WordPress theme version in Appearance > Themes or use: wp theme list --field=name,versionCheck Version:
wp theme list --field=name,status,version | grep hotstarVerify Fix Applied:
Confirm HotStar theme version is 1.5 or higher📡 Detection & Monitoring
Log Indicators:
- Unusual POST requests with serialized data
- PHP warnings about unserialize()
- Unexpected file writes in wp-content
Network Indicators:
- HTTP requests containing serialized PHP objects
- Patterns like O:8:"stdClass" in POST data
SIEM Query:
source="wordpress.log" AND "unserialize" AND ("warning" OR "error")