CVE-2024-7656
📋 TL;DR
The Image Hotspot by DevVN WordPress plugin is vulnerable to PHP object injection through deserialization of untrusted input. This allows authenticated attackers with Author-level access or higher to inject malicious PHP objects. If a POP chain exists via other installed plugins or themes, this could lead to arbitrary file deletion, data theft, or remote code execution.
💻 Affected Systems
- Image Hotspot by DevVN 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 system compromise, data exfiltration, or website defacement if a suitable POP chain exists in the environment.
Likely Case
Limited impact due to lack of known POP chain in the vulnerable plugin itself, but potential for data manipulation or limited file operations if other vulnerable components are present.
If Mitigated
Minimal impact if proper access controls limit Author-level accounts and regular security updates are applied to all plugins/themes.
🎯 Exploit Status
Exploitation requires authenticated access and depends on availability of POP chains from other installed components.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 1.2.6 or later
Vendor Advisory: https://plugins.trac.wordpress.org/changeset/3139899/
Restart Required: No
Instructions:
1. Log into WordPress admin panel. 2. Navigate to Plugins > Installed Plugins. 3. Find 'Image Hotspot by DevVN'. 4. Click 'Update Now' if available. 5. Alternatively, download version 1.2.6+ from WordPress.org and manually replace plugin files.
🔧 Temporary Workarounds
Disable vulnerable plugin
allTemporarily deactivate the Image Hotspot by DevVN plugin until patched
wp plugin deactivate devvn-image-hotspot
Restrict user roles
allLimit creation of Author-level accounts and review existing Author users
🧯 If You Can't Patch
- Remove the plugin entirely if not essential
- Implement web application firewall rules to block deserialization attempts
🔍 How to Verify
Check if Vulnerable:
Check plugin version in WordPress admin under Plugins > Installed Plugins. Look for 'Image Hotspot by DevVN' version 1.2.5 or earlier.Check Version:
wp plugin get devvn-image-hotspot --field=versionVerify Fix Applied:
Confirm plugin version is 1.2.6 or later in WordPress admin panel.📡 Detection & Monitoring
Log Indicators:
- Unusual POST requests to WordPress admin-ajax.php containing serialized data
- Multiple failed authentication attempts followed by successful Author-level login
Network Indicators:
- HTTP requests with serialized PHP objects in parameters
- Unusual outbound connections from WordPress server after authenticated sessions
SIEM Query:
source="wordpress.log" AND ("devvn_ihotspot" OR "admin-ajax.php") AND ("unserialize" OR "O:" OR "C:")