CVE-2025-68899
📋 TL;DR
This vulnerability allows attackers to inject malicious objects through insecure deserialization in the Vivagh WordPress theme. Attackers could execute arbitrary code, potentially compromising websites using this theme. All WordPress sites running Vivagh theme versions up to and including 2.4 are affected.
💻 Affected Systems
- Vivagh WordPress Theme by DesignThemes
⚠️ 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 website takeover, data theft, malware distribution, or server compromise.
Likely Case
Website defacement, backdoor installation, or data exfiltration through PHP object injection.
If Mitigated
Limited impact if proper input validation and output encoding are implemented elsewhere in the application stack.
🎯 Exploit Status
PHP object injection vulnerabilities are commonly weaponized. The PatchStack reference suggests exploit details are publicly available.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Version after 2.4 (check vendor for exact version)
Vendor Advisory: https://patchstack.com/database/Wordpress/Theme/vivagh/vulnerability/wordpress-vivagh-theme-2-4-php-object-injection-vulnerability?_s_id=cve
Restart Required: No
Instructions:
1. Log into WordPress admin panel. 2. Navigate to Appearance > Themes. 3. Check for Vivagh theme updates. 4. Update to latest version. 5. If no update available, replace with secure alternative theme.
🔧 Temporary Workarounds
Disable Vivagh Theme
allSwitch to a different WordPress theme to immediately mitigate the vulnerability.
wp theme activate twentytwentyfour
wp theme delete vivagh
Input Validation Filter
allAdd custom PHP filter to sanitize deserialization inputs (temporary measure).
Add custom filter in theme functions.php or via plugin
🧯 If You Can't Patch
- Implement web application firewall (WAF) rules to block deserialization attempts
- Restrict access to affected WordPress installation using IP whitelisting
🔍 How to Verify
Check if Vulnerable:
Check WordPress admin panel > Appearance > Themes for Vivagh theme version 2.4 or earlier.Check Version:
wp theme list --name=vivagh --field=versionVerify Fix Applied:
Confirm Vivagh theme version is greater than 2.4 or theme has been removed/replaced.📡 Detection & Monitoring
Log Indicators:
- Unusual PHP deserialization errors in WordPress debug logs
- Unexpected file writes in wp-content/themes/vivagh directory
Network Indicators:
- HTTP POST requests containing serialized PHP objects to theme endpoints
- Unusual outbound connections from WordPress server
SIEM Query:
source="wordpress.log" AND ("unserialize" OR "vivagh" OR "PHP object injection")