CVE-2025-5700
📋 TL;DR
The Simple Logo Carousel WordPress plugin has a stored cross-site scripting vulnerability that allows authenticated attackers with Contributor-level access or higher to inject malicious scripts into web pages. These scripts execute whenever users view the compromised pages, potentially stealing credentials or performing unauthorized actions. All WordPress sites using this plugin up to version 1.9.3 are affected.
💻 Affected Systems
- Simple Logo Carousel 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, take over the WordPress site, deface pages, redirect users to malicious sites, or install backdoors for persistent access.
Likely Case
Attackers with contributor accounts inject malicious scripts to steal user session cookies, perform actions as authenticated users, or display phishing content to visitors.
If Mitigated
With proper user access controls and content security policies, impact is limited to the specific compromised pages with minimal data exposure.
🎯 Exploit Status
Exploitation requires authenticated access but is technically simple. Public proof-of-concept exists in commit references.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Versions after 1.9.3
Vendor Advisory: https://wordpress.org/plugins/simple-logo-carousel/#developers
Restart Required: No
Instructions:
1. Log into WordPress admin panel. 2. Navigate to Plugins → Installed Plugins. 3. Find Simple Logo Carousel. 4. Click 'Update Now' if available. 5. If no update available, deactivate and delete the plugin, then install the latest version from WordPress repository.
🔧 Temporary Workarounds
Remove Contributor Access
allTemporarily remove Contributor role access or restrict user registration to prevent exploitation.
Implement Content Security Policy
allAdd CSP headers to restrict script execution from unauthorized sources.
Add to .htaccess: Header set Content-Security-Policy "default-src 'self'; script-src 'self'"
Add to wp-config.php: header("Content-Security-Policy: default-src 'self'; script-src 'self'");
🧯 If You Can't Patch
- Deactivate and remove the Simple Logo Carousel plugin immediately
- Implement strict user access controls and audit all contributor-level accounts
🔍 How to Verify
Check if Vulnerable:
Check WordPress admin → Plugins → Simple Logo Carousel → Version. If version is 1.9.3 or lower, you are vulnerable.Check Version:
wp plugin list --name=simple-logo-carousel --field=versionVerify Fix Applied:
After updating, verify plugin version is higher than 1.9.3. Check the Shortcode.php file at line 40 for proper output escaping.📡 Detection & Monitoring
Log Indicators:
- Unusual POST requests to wp-admin with 'id' parameter containing script tags
- Multiple failed login attempts followed by successful contributor login
Network Indicators:
- Unexpected script tags in HTTP responses from WordPress pages
- External script loads from carousel pages
SIEM Query:
source="wordpress.log" AND ("id=<script" OR "id=javascript:")🔗 References
- https://github.com/idesolutions/simple-logo-carousel/commit/d995b5d35e0fdc0a59307ce664e4ce1158b69bff
- https://plugins.trac.wordpress.org/browser/simple-logo-carousel/trunk/includes/Base/Shortcode.php#L40
- https://plugins.trac.wordpress.org/changeset/3312693/
- https://wordpress.org/plugins/simple-logo-carousel/#developers
- https://www.wordfence.com/threat-intel/vulnerabilities/id/b25f939c-1dfe-4d4f-a27a-1f9022da6965?source=cve
