CVE-2025-13843
📋 TL;DR
This vulnerability allows authenticated WordPress users with Contributor-level access or higher to inject malicious scripts into website pages via the 'float' parameter in the VigLink SpotLight plugin's shortcode. The injected scripts execute whenever users visit the compromised pages, enabling session hijacking, defacement, or malware distribution. All WordPress sites using this plugin up to version 1.0.a are affected.
💻 Affected Systems
- VigLink SpotLight By ShortCode 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 credentials, redirect users to malicious sites, install backdoors, or completely compromise the WordPress site and potentially the underlying server.
Likely Case
Attackers with contributor access inject malicious scripts to steal user session cookies, display fraudulent content, or redirect users to phishing pages.
If Mitigated
With proper user access controls and content security policies, impact is limited to defacement or temporary disruption of affected pages.
🎯 Exploit Status
Exploitation requires authenticated access but is technically simple - attackers just need to inject malicious scripts via the 'float' parameter in shortcodes.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Not available
Vendor Advisory: https://plugins.trac.wordpress.org/browser/viglink-spotlight-by-shortcode
Restart Required: No
Instructions:
1. Immediately disable and remove the VigLink SpotLight By ShortCode plugin. 2. Check WordPress admin for any malicious content. 3. Consider using alternative plugins for similar functionality.
🔧 Temporary Workarounds
Disable Plugin
allDeactivate and delete the vulnerable plugin from WordPress
Navigate to WordPress admin > Plugins > Installed Plugins > Deactivate and Delete VigLink SpotLight By ShortCode
Restrict User Roles
allLimit contributor and author permissions or implement stricter access controls
Use WordPress role management plugins to restrict shortcode usage capabilities
🧯 If You Can't Patch
- Implement Content Security Policy (CSP) headers to restrict script execution
- Regularly audit user-generated content and shortcode usage for malicious scripts
🔍 How to Verify
Check if Vulnerable:
Check WordPress admin > Plugins > Installed Plugins for 'VigLink SpotLight By ShortCode' version 1.0.a or earlierCheck Version:
wp plugin list --name='viglink-spotlight-by-shortcode' --field=versionVerify Fix Applied:
Confirm the plugin is no longer installed or active in WordPress plugins list📡 Detection & Monitoring
Log Indicators:
- Unusual shortcode modifications in post/page edits
- Multiple failed login attempts followed by successful contributor login
Network Indicators:
- Unexpected script tags in page responses containing 'float' parameter manipulation
SIEM Query:
source="wordpress" AND (plugin="viglink-spotlight-by-shortcode" OR shortcode="spotlight") AND parameter="float"🔗 References
- https://plugins.trac.wordpress.org/browser/viglink-spotlight-by-shortcode/tags/1.0.a/spotlight.php#L20
- https://plugins.trac.wordpress.org/browser/viglink-spotlight-by-shortcode/trunk/spotlight.php#L20
- https://www.wordfence.com/threat-intel/vulnerabilities/id/f1275a8f-c9ac-4cb3-8aa2-1393ffcc9dc8?source=cve
