CVE-2025-11874
📋 TL;DR
This stored XSS vulnerability in the Slippy Slider WordPress plugin allows authenticated attackers with contributor-level access or higher to inject malicious scripts into website pages. The scripts execute whenever users visit compromised pages, potentially stealing credentials or performing unauthorized actions. All WordPress sites using vulnerable versions of this plugin are affected.
💻 Affected Systems
- Slippy Slider – Responsive Touch Navigation Slider 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, deface websites, redirect users to malicious sites, or install backdoors for persistent access.
Likely Case
Attackers with contributor accounts inject malicious scripts to steal visitor session cookies or credentials, potentially compromising user accounts.
If Mitigated
With proper user access controls and content security policies, impact is limited to isolated script execution without broader system compromise.
🎯 Exploit Status
Exploitation requires authenticated access but is technically simple once attacker has contributor-level credentials
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 2.1 or later
Vendor Advisory: https://plugins.trac.wordpress.org/browser/slippy-slider-responsive-touch-navigation-slider
Restart Required: No
Instructions:
1. Log into WordPress admin panel. 2. Navigate to Plugins → Installed Plugins. 3. Find Slippy Slider plugin. 4. Click 'Update Now' if update available. 5. If no update available, deactivate and delete plugin.
🔧 Temporary Workarounds
Disable plugin
allTemporarily disable the vulnerable plugin until patched
wp plugin deactivate slippy-slider-responsive-touch-navigation-slider
Remove contributor shortcode access
allRestrict shortcode usage to editors and administrators only
Add user role capability filter in functions.php
🧯 If You Can't Patch
- Implement Content Security Policy (CSP) headers to restrict script execution
- Review and audit all contributor-level user accounts for suspicious activity
🔍 How to Verify
Check if Vulnerable:
Check WordPress admin → Plugins → Installed Plugins for Slippy Slider version ≤2.0Check Version:
wp plugin get slippy-slider-responsive-touch-navigation-slider --field=versionVerify Fix Applied:
Confirm plugin version is 2.1 or higher in WordPress admin panel📡 Detection & Monitoring
Log Indicators:
- Unusual shortcode modifications by contributor users
- Multiple page edits in short time by same user
Network Indicators:
- Script tags with suspicious attributes in page responses
- External script loads from unexpected domains
SIEM Query:
source="wordpress.log" AND "slippy-slider" AND ("shortcode" OR "update_post")