CVE-2025-13153
📋 TL;DR
The Logo Slider WordPress plugin before version 4.9.0 contains a stored cross-site scripting (XSS) vulnerability. Users with contributor role or higher can inject malicious scripts into slider options that execute when administrators view the dashboard. This affects WordPress sites using vulnerable versions of the Logo Slider plugin.
💻 Affected Systems
- Logo Slider WordPress plugin
⚠️ Risk & Real-World Impact
Worst Case
An attacker with contributor access could inject malicious JavaScript that steals administrator session cookies, redirects users to malicious sites, or performs administrative actions when logged-in administrators view the dashboard.
Likely Case
Contributor-level users could inject scripts that display unwanted content, deface the dashboard, or perform limited malicious actions within the WordPress context.
If Mitigated
With proper role-based access controls and input validation, the impact is limited to potential dashboard disruption for users with appropriate permissions.
🎯 Exploit Status
Exploitation requires contributor-level access or higher. The vulnerability is in dashboard output, not public-facing content.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 4.9.0
Vendor Advisory: https://wpscan.com/vulnerability/0ed67947-228d-420c-8d28-e0d7326eb101/
Restart Required: No
Instructions:
1. Log into WordPress admin dashboard. 2. Navigate to Plugins → Installed Plugins. 3. Find Logo Slider plugin. 4. Click 'Update Now' if update available. 5. Alternatively, download version 4.9.0+ from WordPress repository and replace existing plugin.
🔧 Temporary Workarounds
Temporary plugin deactivation
allDisable the Logo Slider plugin until patched
wp plugin deactivate logo-slider
Restrict user roles
allTemporarily remove contributor role access or downgrade to subscriber role
wp user update <username> --role=subscriber
🧯 If You Can't Patch
- Implement strict input validation for all plugin options fields
- Apply Content Security Policy (CSP) headers to restrict script execution
🔍 How to Verify
Check if Vulnerable:
Check WordPress admin → Plugins → Logo Slider → View version details. If version is below 4.9.0, system is vulnerable.Check Version:
wp plugin get logo-slider --field=versionVerify Fix Applied:
After updating, verify plugin version shows 4.9.0 or higher in WordPress plugins list.📡 Detection & Monitoring
Log Indicators:
- Unusual POST requests to logo slider admin endpoints
- JavaScript payloads in plugin option fields
Network Indicators:
- Suspicious script tags in admin area requests
SIEM Query:
source="wordpress.log" AND "logo-slider" AND ("POST" OR "update_option") AND ("script" OR "javascript" OR "onload" OR "onerror")