CVE-2025-31073
📋 TL;DR
This stored cross-site scripting (XSS) vulnerability in the Unlimited WordPress theme allows attackers to inject malicious scripts into web pages. When exploited, these scripts execute in victims' browsers, potentially stealing credentials or hijacking sessions. All WordPress sites using Unlimited theme versions up to 1.45 are affected.
💻 Affected Systems
- Compete Themes Unlimited WordPress Theme
⚠️ 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, deface content, or redirect visitors to malicious sites, potentially leading to complete site compromise and data theft.
Likely Case
Attackers inject malicious JavaScript to steal user session cookies or credentials, enabling account takeover of logged-in users, particularly administrators with full site control.
If Mitigated
With proper input validation and output encoding, malicious scripts would be neutralized before execution, preventing any client-side code injection.
🎯 Exploit Status
Stored XSS vulnerabilities are commonly exploited in the wild. The Patchstack reference provides technical details about the vulnerability.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 1.46 or later
Vendor Advisory: https://patchstack.com/database/wordpress/theme/unlimited/vulnerability/wordpress-unlimited-1-45-cross-site-scripting-xss-vulnerability?_s_id=cve
Restart Required: No
Instructions:
1. Log into WordPress admin panel. 2. Navigate to Appearance > Themes. 3. Find Unlimited theme and check for updates. 4. If update to 1.46+ is available, apply it. 5. If no update appears, manually download latest version from official source and replace theme files.
🔧 Temporary Workarounds
Disable Unlimited Theme
allTemporarily switch to a different WordPress theme until patched
wp theme activate twentytwentyfour
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 functions.php: header("Content-Security-Policy: default-src 'self'; script-src 'self'");
🧯 If You Can't Patch
- Implement a Web Application Firewall (WAF) with XSS protection rules to filter malicious input before it reaches the application.
- Disable user input fields that could be vulnerable or implement strict input validation and output encoding in theme files.
🔍 How to Verify
Check if Vulnerable:
Check WordPress admin panel > Appearance > Themes > Unlimited theme details for version number. If version is 1.45 or lower, system is vulnerable.Check Version:
wp theme list --field=name,version | grep unlimitedVerify Fix Applied:
After updating, verify Unlimited theme version shows 1.46 or higher in WordPress admin panel. Test previously vulnerable input fields with basic XSS payloads like <script>alert('test')</script> to ensure they're properly sanitized.📡 Detection & Monitoring
Log Indicators:
- Unusual POST requests to theme-related endpoints with script tags or JavaScript in parameters
- Multiple failed login attempts following suspicious theme file modifications
Network Indicators:
- HTTP requests containing <script> tags or JavaScript code in theme-related parameters
- Unexpected outbound connections from WordPress site to external domains
SIEM Query:
source="wordpress.log" AND ("unlimited" OR "theme") AND ("<script>" OR "javascript:" OR "onerror=" OR "onload=")