Nextcloud: Some HTML Tags are Getting Executed in com.nextcloud.client

###What is the Vulnerability?
HTML Tags such as <h1> , <small> , <href> and <img> are Getting Executed in Next Cloud Client Mobile Application for Android which can then Results to Code Injection.

###Reproduction Steps

1.) Using Next Cloud Client Mobile App on Android, Rename a Folder to <a href>test
Our HTML tag Was Executed
{F518303}

2.)Rename the folder to small<h1>BIG
Our HTML tag Was Executed
{F518304}

3.) Rename the Folder to normal<small>small<h1>BIG
Our HTML tag Was Executed
{F518305}

Impact

If successfully exploited, impact could cover loss of confidentiality, loss of integrity, loss of availability, and/or loss of accountability