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# Critical Stored XSS Attack via WooCommerce + PixelYourSite

Evgeny Dimitrov 14 February 2026 2 min read

![Wordpress Vulnerability 65710a118722e Sej](https://88lab.eu/en/media/wp-post-15265.webp) 

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On February 14, 2026, we detected a real and working  **Stored XSS attack** carried out through a fake WooCommerce order and exploiting the way PixelYourSite records the HTTP Referer.

This is not a hypothesis. It happened in production.

## How the attack works

- The attacker creates a fake order.

- They manipulate the HTTP Referer header.

- PixelYourSite records the referrer as “Traffic Source” in the order meta.

- The data is displayed in the admin panel without escaping.

- When the order is opened, the browser executes the malicious JavaScript.

- The script: - Loads /wp-admin/user-new.php

- Extracts the CSRF nonce

- Creates a new administrator account via the active admin session  

There is no brute force. There is no breach in WordPress.
Your own admin session is used.

[RELATED TOPICS:  Watch out for Google Core Vitals](https://88lab.eu/en/vnimavajte-s-google-core-vitals/) 

## The real timeline

07:01 - Fake order opened
07:01 - The malicious <script>  executes
07:09:33 - user-new.php  loads in the background
07:09:42 - A new administrator is created
07:10 - Email received for a new user
07:10:35 - The account is deleted

The account existed for less than 1 minute.

## What it looks like from the outside

The order looks completely normal:

- Full name

- Real address

- PHONE

- Email (often proton.me)

- Cash on delivery  

The malicious code is hidden in the “Traffic Source” section of PixelYourSite.

There is no visual indicator.

[RELATED TOPICS:  WordPress site speed optimization (guide 2026)](https://88lab.eu/en/optimizacziya-za-skorost-na-wordpress-sajt-narachnik-2026/) 

## Who is affected

Every WooCommerce store with active PixelYourSite that records the HTTP Referer and displays the meta data in the admin panel.

## What you should do IMMEDIATELY

### 1. DO NOT OPEN ANY ORDERS

Do not open absolutely any orders in the admin panel,
before you deactivate PixelYourSite.

Every opened order can trigger XSS again.

### 2. Disable PixelYourSite

Temporarily turn off (Deactivate) the plugin until it is officially confirmed that the issue has been fixed.

### 3. Check for compromised accounts

wp-admin → Users
Look for unknown administrators.

### 4. Change WordPress salts

Generate new security keys and replace them in wp-config.php.

### 5. Check the database

Look for suspicious records in order meta:

- <script >

- <iframe >

- <img >

- Unknown domains  

If you are not sure, run the check through the database (not through the admin interface).

## Why this is serious

This is Stored XSS in an administrative environment.

The attacker:

- Does not hack WordPress directly

- Does not break passwords

- Does not use SQL injection  

They wait for the administrator to open the order themselves.

One fake order is enough for full admin access.

## Conclusion

Fake orders are no longer just spam.

They can be an entry point to a full administrative compromise.

If you manage a WooCommerce store, act immediately.
If you are an agency, notify your clients.

Security does not break from the inside.
It breaks when we trust user data without verification.

![Evgeny Dimitrov](https://88lab.eu/en/media/evgeniy.webp)

About the author

## Evgeny Dimitrov

the founder and manager of 88Lab

He has worked in web technologies, digital marketing, and information security for more than two decades. His path began back in  **2001 with LinuxExpress**  - his first web project, dedicated to Linux. Later, under the pseudonym  **KByte** , he published technical materials and articles on Linux-BG.org, and in  **2002 he founded Security-BG**  - a project for learning and sharing knowledge in the field of computer security.

Today, he is  **the founder and manager of 88Lab** , where he works on web platforms, SEO, Google Ads, AI solutions, and online business optimization. The agency’s projects include  **Banker, Pulse Fitness & Spa, CoolFit, and the Bulgarian Construction Chamber** . His expert opinions on  **web technologies, digital marketing, and online business**  have been published in the newspaper  **Banker and Actualno.com** .

[More about 88Lab](https://88lab.eu/en/za-nas/)

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