Microsoft cleared a spoofing vulnerability that exists in the way Microsoft Outlook for Android software parses specifically crafted email messages.
An authenticated attacker could exploit the vulnerability by sending a specially crafted email message to a victim.
The attacker who successfully exploited this vulnerability (MITRE CVE-2019-1105) could then perform cross-site scripting attacks on the affected systems and run scripts in the security context of the current user.
The security update addresses the vulnerability by correcting how Outlook for Android parses specially crafted email messages.
Microsoft has not identified any mitigating factors for this vulnerability, nor has it identified any workarounds for this vulnerability.