CVE-2025-22718
📋 TL;DR
This stored cross-site scripting (XSS) vulnerability in the FAT Event Lite WordPress 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 FAT Event Lite version 1.1 or earlier are affected.
💻 Affected Systems
- FAT Event Lite 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 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 reaching users.
🎯 Exploit Status
Stored XSS vulnerabilities are commonly exploited once details become public. Attackers need to find the vulnerable input field to inject malicious scripts.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 1.2 or later
Restart Required: No
Instructions:
1. Log into WordPress admin panel. 2. Navigate to Plugins → Installed Plugins. 3. Find FAT Event Lite and click 'Update Now'. 4. If no update is available, deactivate and delete the plugin, then install the latest version from WordPress repository.
🔧 Temporary Workarounds
Disable Plugin
allTemporarily disable the vulnerable plugin until patched version is available
wp plugin deactivate fat-event-lite
Content Security Policy
allImplement 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
- Implement web application firewall (WAF) rules to block XSS payloads
- Enable WordPress security plugins that provide XSS protection
🔍 How to Verify
Check if Vulnerable:
Check WordPress admin → Plugins → FAT Event Lite version. If version is 1.1 or earlier, you are vulnerable.Check Version:
wp plugin get fat-event-lite --field=versionVerify Fix Applied:
After updating, verify FAT Event Lite version shows 1.2 or later in WordPress plugins list.📡 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-specific endpoints
- Outbound connections to suspicious domains after page loads
SIEM Query:
source="web_server" AND ("fat-event-lite" OR "fat_event_lite") AND ("<script>" OR "javascript:" OR "onload=" OR "onerror=")