CVE-2025-23933
📋 TL;DR
This stored XSS vulnerability in WpF Ultimate Carousel WordPress plugin allows attackers to inject malicious scripts into web pages that persist in the database and execute when other users view affected pages. All WordPress sites using WpF Ultimate Carousel versions up to 1.0.11 are affected. Attackers can steal session cookies, redirect users, or perform actions on their behalf.
💻 Affected Systems
- WpFreeware WpF Ultimate 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 gain administrative access to WordPress sites, install backdoors, steal sensitive data, deface websites, or use compromised sites for phishing campaigns.
Likely Case
Attackers steal session cookies to hijack administrator accounts, inject malicious ads or redirects, or perform limited content manipulation.
If Mitigated
With proper input validation and output encoding, the vulnerability is prevented; with web application firewalls, attacks are blocked before reaching the application.
🎯 Exploit Status
Exploitation requires contributor-level access or higher to inject malicious scripts. Public proof-of-concept demonstrates the vulnerability.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 1.0.12 or later
Restart Required: No
Instructions:
1. Log into WordPress admin panel. 2. Navigate to Plugins → Installed Plugins. 3. Find 'WpF Ultimate Carousel' and click 'Update Now'. 4. Verify plugin version is 1.0.12 or higher.
🔧 Temporary Workarounds
Disable Plugin
allTemporarily disable the vulnerable plugin until patched
wp plugin deactivate wpf-ultimate-carousel
Web Application Firewall
allImplement WAF rules to block XSS payloads targeting the plugin
🧯 If You Can't Patch
- Restrict user roles: Limit contributor and author permissions to trusted users only
- Implement Content Security Policy (CSP) headers to mitigate script execution
🔍 How to Verify
Check if Vulnerable:
Check WordPress admin → Plugins → Installed Plugins for WpF Ultimate Carousel version. If version is 1.0.11 or lower, you are vulnerable.Check Version:
wp plugin get wpf-ultimate-carousel --field=versionVerify Fix Applied:
After updating, verify plugin version shows 1.0.12 or higher in WordPress admin panel.📡 Detection & Monitoring
Log Indicators:
- Unusual POST requests to carousel-related endpoints
- Suspicious script tags in database entries
- Multiple failed login attempts followed by successful contributor/admin access
Network Indicators:
- HTTP requests containing script tags or JavaScript payloads to wp-content/plugins/wpf-ultimate-carousel/ endpoints
SIEM Query:
source="wordpress.log" AND ("wpf-ultimate-carousel" OR "carousel") AND ("script" OR "javascript:" OR "onerror=" OR "onload=")