CVE-2026-42458

Magento Long Term Support (LTS) is an unofficial, community-driven project provides an alternative to the Magento Community Edition e-commerce platform with a high level of backward compatibility. Prior to 20.18.0, there is a reflected XSS vulnerability under admin panel -> System -> Import/Export -> Dataflow - Profiles. This vulnerability is fixed in 20.18.0.

Magento Long Term Support (LTS) is an unofficial, community-driven project provides an alternative to the Magento Community Edition e-commerce platform with a high level of backward compatibility. Prior to 20.18.0, there is a reflected XSS vulnerability under admin panel -> System -> Import/Export -> Dataflow - Profiles. This vulnerability is fixed in 20.18.0.

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](https://github.com/user-attachments/files/25629638/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

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](https://github.com/user-attachments/files/25629638/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

Magento Long Term Support (LTS) es un proyecto no oficial, impulsado por la comunidad, que proporciona una alternativa a la plataforma de comercio electrónico Magento Community Edition con un alto nivel de compatibilidad con versiones anteriores. Antes de la versión 20.18.0, existe una vulnerabilidad de XSS reflejado bajo el panel de administración -> Sistema -> Importar/Exportar -> Perfiles de flujo de datos. Esta vulnerabilidad está corregida en la versión 20.18.0.