CVE-2025-46481
📋 TL;DR
This vulnerability allows attackers to inject malicious objects through deserialization of untrusted data in the Flickr Shortcode Importer WordPress plugin. Successful exploitation could lead to remote code execution or data manipulation. All WordPress sites using affected versions of this plugin are vulnerable.
💻 Affected Systems
- Flickr Shortcode Importer 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, or malware installation.
Likely Case
Arbitrary code execution within WordPress context, potentially allowing privilege escalation or backdoor installation.
If Mitigated
Limited impact if proper input validation and output encoding are implemented elsewhere.
🎯 Exploit Status
Exploitation requires understanding of PHP object injection techniques and WordPress plugin structure.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 2.2.4 or later
Restart Required: No
Instructions:
1. Log into WordPress admin panel. 2. Navigate to Plugins → Installed Plugins. 3. Find 'Flickr Shortcode Importer'. 4. Click 'Update Now' if available. 5. If no update appears, manually download version 2.2.4+ from WordPress.org and replace plugin files.
🔧 Temporary Workarounds
Disable Plugin
allTemporarily deactivate the vulnerable plugin until patched.
wp plugin deactivate flickr-shortcode-importer
Remove Plugin
allCompletely remove the vulnerable plugin files.
wp plugin delete flickr-shortcode-importer
🧯 If You Can't Patch
- Implement web application firewall (WAF) rules to block deserialization attempts.
- Restrict access to WordPress admin interface to trusted IP addresses only.
🔍 How to Verify
Check if Vulnerable:
Check WordPress admin → Plugins → Installed Plugins for 'Flickr Shortcode Importer' version 2.2.3 or earlier.Check Version:
wp plugin get flickr-shortcode-importer --field=versionVerify Fix Applied:
Verify plugin version is 2.2.4 or later in WordPress admin panel.📡 Detection & Monitoring
Log Indicators:
- Unusual POST requests to WordPress admin-ajax.php or plugin-specific endpoints
- PHP errors related to unserialize() or object injection
Network Indicators:
- HTTP requests containing serialized PHP objects in parameters
- Traffic patterns suggesting exploitation attempts
SIEM Query:
source="wordpress.log" AND ("unserialize" OR "Flickr Shortcode Importer")