CVE-2025-58839
📋 TL;DR
This vulnerability allows attackers to inject malicious objects through deserialization of untrusted data in the eDS Responsive Menu WordPress plugin. Attackers could execute arbitrary code on affected WordPress sites. All WordPress installations using eDS Responsive Menu versions up to 1.2 are affected.
💻 Affected Systems
- aThemeArt Translations eDS Responsive Menu 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 site compromise, data theft, and server takeover.
Likely Case
Arbitrary code execution allowing backdoor installation, data exfiltration, or site defacement.
If Mitigated
Limited impact if proper input validation and output encoding are implemented elsewhere.
🎯 Exploit Status
PHP object injection vulnerabilities are commonly exploited and weaponization is likely given the high CVSS score.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 1.3 or later
Restart Required: No
Instructions:
1. Log into WordPress admin panel. 2. Navigate to Plugins > Installed Plugins. 3. Find 'eDS Responsive Menu'. 4. Click 'Update Now' if update is available. 5. Alternatively, download version 1.3+ from WordPress repository and manually update.
🔧 Temporary Workarounds
Disable Plugin
allTemporarily disable the vulnerable plugin until patched.
wp plugin deactivate eds-responsive-menu
Remove Plugin
allCompletely remove the vulnerable plugin if not essential.
wp plugin delete eds-responsive-menu
🧯 If You Can't Patch
- Implement web application firewall (WAF) rules to block deserialization attacks
- Restrict access to affected WordPress sites using IP whitelisting
🔍 How to Verify
Check if Vulnerable:
Check WordPress admin panel > Plugins > Installed Plugins for eDS Responsive Menu version 1.2 or earlier.Check Version:
wp plugin get eds-responsive-menu --field=versionVerify Fix Applied:
Verify plugin version is 1.3 or later in WordPress admin panel.📡 Detection & Monitoring
Log Indicators:
- Unusual POST requests to WordPress admin-ajax.php or plugin endpoints
- PHP error logs containing unserialize() warnings or object injection errors
Network Indicators:
- HTTP requests with serialized PHP objects in parameters
- Unexpected outbound connections from WordPress server
SIEM Query:
source="wordpress.logs" AND ("eds-responsive-menu" OR "unserialize" OR "PHP object injection")