CVE-2025-69362
📋 TL;DR
This stored cross-site scripting (XSS) vulnerability in POSIMYTH UiChemy allows attackers to inject malicious scripts into web pages that are then executed when other users view those pages. It affects WordPress sites using the UiChemy plugin version 4.4.2 and earlier. Attackers could steal session cookies, redirect users, or perform actions on their behalf.
💻 Affected Systems
- POSIMYTH UiChemy 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, take over the WordPress site, install backdoors, or redirect all visitors to malicious sites.
Likely Case
Attackers steal user session cookies, perform unauthorized actions as authenticated users, or deface website content.
If Mitigated
With proper input validation and output encoding, the impact is limited to minor content manipulation if exploitation occurs.
🎯 Exploit Status
Stored XSS vulnerabilities are commonly exploited. The patchstack reference suggests exploitation details are publicly available.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Version after 4.4.2
Vendor Advisory: https://patchstack.com/database/Wordpress/Plugin/uichemy/vulnerability/wordpress-uichemy-plugin-4-4-2-cross-site-scripting-xss-vulnerability?_s_id=cve
Restart Required: No
Instructions:
1. Log into WordPress admin panel. 2. Navigate to Plugins > Installed Plugins. 3. Find UiChemy plugin. 4. Click 'Update Now' if update available. 5. If no update available, deactivate and remove plugin until patched version is released.
🔧 Temporary Workarounds
Input Validation Filter
allImplement server-side input validation to sanitize all user inputs before processing.
Requires custom PHP code modifications to the plugin
Content Security Policy
allImplement CSP headers to restrict script execution sources.
Header set Content-Security-Policy "default-src 'self'; script-src 'self'"
Add to .htaccess or web server configuration
🧯 If You Can't Patch
- Disable or remove the UiChemy plugin immediately
- Implement web application firewall (WAF) rules to block XSS payloads
🔍 How to Verify
Check if Vulnerable:
Check WordPress admin panel > Plugins > Installed Plugins for UiChemy version 4.4.2 or earlier.Check Version:
wp plugin list --name=uichemy --field=version (if WP-CLI installed)Verify Fix Applied:
Verify UiChemy plugin version is higher than 4.4.2 in WordPress admin panel.📡 Detection & Monitoring
Log Indicators:
- Unusual POST requests to UiChemy endpoints with script tags
- Multiple failed XSS attempts in web server logs
Network Indicators:
- HTTP requests containing <script> tags to UiChemy endpoints
- Unexpected outbound connections after page views
SIEM Query:
source="web_server" AND (uri="*uichemy*" AND (body="*<script>*" OR body="*javascript:*"))