There is a vulnerability due to the lack of output encoding for some particular characters in the email APP built in the affected Smart Phones. A successful exploitation of the vulnerability could allow an unauthenticated remote attacker to perform a cross-site scripting (XSS) attack and lead to obtain the user information. (Vulnerability ID: HWPSIRT-2016-03030)
This vulnerability has been assigned Common Vulnerabilities and Exposures (CVE) ID: CVE-2016-4575.
Huawei has released software updates to fix these vulnerabilities. This advisory is available at the following link:
http://www.huawei.com/en/psirt/security-advisories/huawei-sa-20160507-01-emailapp-en