CVE-2025-48256
📋 TL;DR
This stored cross-site scripting (XSS) vulnerability in the WordPress Import Social Events plugin allows attackers to inject malicious scripts into web pages. When users view pages containing the injected scripts, the attacker can steal session cookies, redirect users, or perform actions on their behalf. All WordPress sites using vulnerable versions of this plugin are affected.
💻 Affected Systems
- WordPress Import Social Events plugin
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Attackers could steal administrator session cookies, take over WordPress sites, install backdoors, deface websites, or redirect visitors to malicious sites.
Likely Case
Attackers inject malicious JavaScript to steal user session cookies, potentially compromising user accounts and performing unauthorized actions.
If Mitigated
With proper input validation and output encoding, malicious scripts would be neutralized before being stored or displayed to users.
🎯 Exploit Status
Stored XSS vulnerabilities are commonly exploited. While no public PoC is confirmed, the vulnerability type is well-understood and easily weaponized.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 1.8.6 or later
Restart Required: No
Instructions:
1. Log into WordPress admin panel. 2. Navigate to Plugins > Installed Plugins. 3. Find 'Import Social Events' plugin. 4. Click 'Update Now' if available. 5. Alternatively, download version 1.8.6+ from WordPress repository and manually update.
🔧 Temporary Workarounds
Disable vulnerable plugin
allTemporarily disable the Import Social Events plugin until patched
wp plugin deactivate import-facebook-events
Implement Content Security Policy
allAdd CSP headers to restrict script execution 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
- Disable the Import Social Events plugin immediately
- Implement web application firewall (WAF) rules to block XSS payloads
🔍 How to Verify
Check if Vulnerable:
Check WordPress admin > Plugins > Installed Plugins for Import Social Events version. If version is 1.8.5 or earlier, you are vulnerable.Check Version:
wp plugin get import-facebook-events --field=versionVerify Fix Applied:
After updating, verify plugin version shows 1.8.6 or later in WordPress admin panel.📡 Detection & Monitoring
Log Indicators:
- Unusual POST requests to plugin endpoints with script tags
- Multiple failed XSS attempts in web server logs
- Suspicious user-agent strings containing script payloads
Network Indicators:
- HTTP requests containing <script> tags to plugin endpoints
- Outbound connections to suspicious domains after page loads
SIEM Query:
source="web_logs" AND (uri="*import-facebook-events*" OR uri="*import-social-events*") AND (content="<script>" OR content="javascript:" OR content="onerror=" OR content="onload=")