CVE-2025-68903
📋 TL;DR
This vulnerability allows attackers to inject malicious objects through deserialization of untrusted data in the Anona WordPress theme. It affects all WordPress sites using Anona theme versions up to and including 8.0, potentially leading to remote code execution.
💻 Affected Systems
- AivahThemes Anona 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
Remote code execution leading to complete system compromise, data theft, and website defacement.
Likely Case
Unauthenticated attackers achieving remote code execution to install backdoors, steal data, or pivot to other systems.
If Mitigated
Limited impact if proper input validation and deserialization controls are implemented.
🎯 Exploit Status
PHP object injection vulnerabilities are commonly exploited and public proof-of-concept exists.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Version after 8.0
Vendor Advisory: https://patchstack.com/database/Wordpress/Theme/anona/vulnerability/wordpress-anona-theme-8-0-php-object-injection-vulnerability?_s_id=cve
Restart Required: No
Instructions:
1. Log into WordPress admin panel. 2. Navigate to Appearance > Themes. 3. Check if Anona theme is installed. 4. If version is 8.0 or earlier, update to latest version or remove the theme.
🔧 Temporary Workarounds
Disable Anona Theme
allSwitch to a different WordPress theme to remove the vulnerable component
wp theme activate twentytwentyfour
wp theme delete anona
Restrict PHP Deserialization
linuxAdd PHP configuration to restrict dangerous deserialization functions
php_admin_value disable_functions "unserialize"
🧯 If You Can't Patch
- Implement web application firewall (WAF) rules to block deserialization attempts
- Restrict access to WordPress admin interface using IP whitelisting
🔍 How to Verify
Check if Vulnerable:
Check WordPress admin panel > Appearance > Themes > Anona theme details for version numberCheck Version:
wp theme list --name=anona --fields=name,status,versionVerify Fix Applied:
Verify Anona theme version is greater than 8.0 or theme is removed📡 Detection & Monitoring
Log Indicators:
- Unusual POST requests to theme files
- PHP unserialize() errors in logs
- Unexpected file uploads or modifications
Network Indicators:
- HTTP requests containing serialized PHP objects
- Patterns matching PHP object injection payloads
SIEM Query:
source="*access.log*" AND ("unserialize" OR "O:" OR "C:" OR "a:" AND "s:") AND "anona"