CVE-2025-22327
📋 TL;DR
This stored cross-site scripting (XSS) vulnerability in the EO4WP WordPress plugin allows attackers to inject malicious scripts into web pages that are then executed when other users view those pages. All WordPress sites using EO4WP versions up to 1.0.7 are affected. The vulnerability enables attackers to steal session cookies, redirect users, or perform actions on their behalf.
💻 Affected Systems
- EO4WP (EmailOctopus for WordPress)
⚠️ 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, the malicious scripts would be neutralized before reaching users' browsers.
🎯 Exploit Status
Stored XSS vulnerabilities are commonly exploited. While no public PoC is confirmed, the vulnerability type is well-understood and weaponization is likely.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 1.0.8 or later
Restart Required: No
Instructions:
1. Log into WordPress admin panel. 2. Navigate to Plugins → Installed Plugins. 3. Find EO4WP and click 'Update Now'. 4. Verify the plugin version is 1.0.8 or higher.
🔧 Temporary Workarounds
Disable EO4WP Plugin
allTemporarily disable the vulnerable plugin until patching is possible
wp plugin deactivate eo4wp
Implement WAF Rules
allConfigure web application firewall to block XSS payloads targeting EO4WP endpoints
🧯 If You Can't Patch
- Remove or disable the EO4WP plugin entirely
- Implement strict Content Security Policy (CSP) headers to mitigate XSS impact
🔍 How to Verify
Check if Vulnerable:
Check WordPress admin → Plugins → Installed Plugins for EO4WP version. If version is 1.0.7 or lower, you are vulnerable.Check Version:
wp plugin get eo4wp --field=versionVerify Fix Applied:
After updating, verify EO4WP version shows 1.0.8 or higher in WordPress plugins list.📡 Detection & Monitoring
Log Indicators:
- Unusual POST requests to EO4WP endpoints containing script tags or JavaScript code
- Multiple failed XSS attempts in web server logs
Network Indicators:
- HTTP requests containing malicious script payloads to EO4WP-related URLs
SIEM Query:
source="web_server_logs" AND (uri="*eo4wp*" OR uri="*emailoctopus*") AND (content="<script>" OR content="javascript:" OR content="onerror=" OR content="onload=")