Zero-Day Advisory

Fortinet Discovers Magento Commerce Cross-Site Scripting Vulnerability


Fortinet's FortiGuard Labs has discovered a Cross-Site Scripting (XSS) vulnerability in Magento.

Magento is an e-commerce platform written in PHP. According to the Alexa top 1M e-commerce platforms for 2018, the e-commerce platform Magento Commerce currently enjoys more than a 14% market share, making it the second largest e-commerce platform in the world.

A XSS vulnerability has been discovered in Magento Commerce 2.1 prior to 2.1.16, Magento Commerce 2.2 prior to 2.2.7. It is caused by failing to sanitize user-supplied data before inserting it into a dynamically generated widget form.


FortiGuard Labs released the following FortiGate IPS signature which covers this specific vulnerability:

Released Oct 03, 2018

Users should apply the solution provided by Magento.


Fortinet reported the vulnerability to Magento on September 27, 2018.

Magento confirmed the vulnerability on October 1, 2018.

Magento patched the vulnerability on November 28, 2018.


This vulnerability was discovered by Zhouyuan Yang of Fortinet's FortiGuard Labs.

IPS Subscription

Fortinet customers who subscribe to Fortinet's intrusion prevention (IPS) service should be protected against this vulnerability with the appropriate configuration parameters in place. Fortinet's IPS service is one component of FortiGuard Subscription Services, which also offer comprehensive solutions such as antivirus, Web content filtering and antispam capabilities. These services enable protection against threats on both application and network layers. FortiGuard Services are continuously updated by FortiGuard Labs, which enables Fortinet to deliver a combination of multi-layered security intelligence and true zero-day protection from new and emerging threats. These updates are delivered to all FortiGate, FortiMail and FortiClient products. Fortinet strictly follows responsible disclosure guidelines to ensure optimum protection during a threat's lifecycle.