CVE-2025-13456

6.1 MEDIUM

📋 TL;DR

ShopBuilder WordPress plugin before version 3.2.2 contains a reflected cross-site scripting (XSS) vulnerability where unsanitized user input is reflected in page output. This allows attackers to execute malicious JavaScript in the context of authenticated users, particularly targeting high-privilege administrators. All WordPress sites using vulnerable versions of ShopBuilder are affected.

💻 Affected Systems

Products:
  • ShopBuilder WordPress Plugin
Versions: All versions before 3.2.2
Operating Systems: Any OS running WordPress
Default Config Vulnerable: ⚠️ Yes
Notes: Requires WordPress installation with ShopBuilder plugin enabled. Vulnerability is present in default configuration.

⚠️ Risk & Real-World Impact

🔴

Worst Case

Administrator account compromise leading to full site takeover, data theft, or malware injection affecting all site visitors.

🟠

Likely Case

Session hijacking of authenticated users, credential theft, or limited administrative actions through social engineering.

🟢

If Mitigated

No impact if proper input validation and output escaping are implemented, or if vulnerable plugin is not installed.

🌐 Internet-Facing: HIGH
🏢 Internal Only: MEDIUM

🎯 Exploit Status

Public PoC: ⚠️ Yes
Weaponized: LIKELY
Unauthenticated Exploit: ⚠️ Yes
Complexity: LOW

Reflected XSS typically requires user interaction (clicking malicious link) but exploitation is straightforward once crafted.

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: 3.2.2

Vendor Advisory: https://wpscan.com/vulnerability/5872ece6-52cb-4306-b7ee-41282815a243/

Restart Required: No

Instructions:

1. Log into WordPress admin panel. 2. Navigate to Plugins > Installed Plugins. 3. Find ShopBuilder plugin. 4. Click 'Update Now' if available, or manually update to version 3.2.2 or later.

🔧 Temporary Workarounds

Disable ShopBuilder Plugin

all

Temporarily disable the vulnerable plugin until patching is possible.

wp plugin deactivate shopbuilder

Web Application Firewall (WAF) Rules

all

Implement WAF rules to block XSS payloads targeting ShopBuilder parameters.

🧯 If You Can't Patch

  • Implement strict Content Security Policy (CSP) headers to mitigate XSS impact.
  • Restrict admin panel access to trusted IP addresses only.

🔍 How to Verify

Check if Vulnerable:

Check WordPress admin panel > Plugins > Installed Plugins for ShopBuilder version. If version is below 3.2.2, system is vulnerable.

Check Version:

wp plugin list --name=shopbuilder --field=version

Verify Fix Applied:

Confirm ShopBuilder plugin version is 3.2.2 or higher in WordPress admin panel.

📡 Detection & Monitoring

Log Indicators:

  • Unusual GET/POST requests containing JavaScript payloads in query parameters
  • Multiple failed XSS attempts in web server logs

Network Indicators:

  • HTTP requests with suspicious parameters containing script tags or JavaScript code
  • Traffic patterns showing repeated requests to ShopBuilder endpoints with encoded payloads

SIEM Query:

source="web_logs" AND (uri="*shopbuilder*" AND (param="*<script>*" OR param="*javascript:*" OR param="*onload=*"))

🔗 References

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