Magento sent an unfiltered form key cookie value to the web server as part of the request, and the cookie value is reflected back as part of the form. Reflected XSS issues could lead to attacks in which a trusted site was used in phishing or spam campaigns (for example, redirecting a user to a phishing site).
Part of patch MAGENTO 2.0.1 SECURITY UPDATE
This vulnerability affects the following application versions:
- Magento 0.74.0-beta9
- Magento 0.74.0-beta10
- Magento 0.74.0-beta11
- Magento 0.74.0-beta12
- Magento 0.74.0-beta13
- Magento 0.74.0-beta14
- Magento 0.74.0-beta15
- Magento 0.74.0-beta16
- Magento 1.0.0-beta
- Magento 1.0.0-beta2
- Magento 1.0.0-beta3
- Magento 1.0.0-beta4
- Magento 1.0.0-beta5
- Magento 1.0.0-beta6
- Magento 2.0.0
- Magento 2.0.0-rc
- Magento 2.0.0-rc2