CVE-2025-47503
📋 TL;DR
This stored cross-site scripting (XSS) vulnerability in the NGG Smart Image Search WordPress plugin allows attackers to inject malicious scripts into web pages. When users view pages containing the malicious content, the scripts execute in their browsers, potentially stealing credentials or performing unauthorized actions. All WordPress sites using vulnerable versions of this plugin are affected.
💻 Affected Systems
- NGG Smart Image Search 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
Attackers could steal administrator session cookies, take over WordPress sites, deface websites, or redirect visitors to malicious sites, potentially compromising all site data and user information.
Likely Case
Attackers inject malicious JavaScript that steals user session cookies or credentials when users visit affected pages, leading to account compromise or content manipulation.
If Mitigated
With proper input validation and output encoding, malicious scripts would be neutralized before reaching users' browsers, preventing execution.
🎯 Exploit Status
Stored XSS vulnerabilities are commonly exploited. While no public PoC is mentioned, the vulnerability type is well-understood and easily weaponized.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Version after 3.3.3
Restart Required: No
Instructions:
1. Log into WordPress admin panel. 2. Navigate to Plugins → Installed Plugins. 3. Find 'NGG Smart Image Search'. 4. Click 'Update Now' if update available. 5. If no update available, deactivate and remove the plugin immediately.
🔧 Temporary Workarounds
Disable Plugin
allTemporarily deactivate the vulnerable plugin until patched version is available
wp plugin deactivate ngg-smart-image-search
Remove Plugin
allCompletely remove the vulnerable plugin from the WordPress installation
wp plugin delete ngg-smart-image-search
🧯 If You Can't Patch
- Implement a Web Application Firewall (WAF) with XSS protection rules
- Add Content Security Policy (CSP) headers to restrict script execution sources
🔍 How to Verify
Check if Vulnerable:
Check WordPress admin → Plugins → Installed Plugins for NGG Smart Image Search version. If version is 3.3.3 or lower, you are vulnerable.Check Version:
wp plugin get ngg-smart-image-search --field=versionVerify Fix Applied:
After updating, verify the plugin version is higher than 3.3.3 in WordPress admin panel.📡 Detection & Monitoring
Log Indicators:
- Unusual POST requests to plugin endpoints
- Suspicious JavaScript payloads in request logs
- Multiple failed XSS attempts
Network Indicators:
- Malicious script tags in HTTP requests to WordPress
- Unexpected JavaScript execution from plugin pages
SIEM Query:
source="wordpress" AND ("ngg-smart-image-search" OR "NGG Smart Image") AND ("script" OR "javascript" OR "onerror" OR "onload")