### Steps to reproduce

1. In your nextcloud instance, create or look for a folder with a & in the name.

2. In OpenProject with active nextcloud integration, go into a projects work packages.

3. Choose a work package and go to files tab.

4. Click on "Add attachment by clicking or drag and drop"

5. In the nextcloud dialogue navigate into the folder that has & in the name

(6. verify that folders without "&" in the folder name work by also navigating into those)


### What is the buggy behavior?

* An error is shown in the nextcloud dialogue saying "no connection to nextcloud"

<br>


### What is the expected behavior?

* Folders with &amp; in the folder name should be accessible&nbsp;


### Screenshots and other files

<img class="image_resized op-uc-image op-uc-image_inline" style="width:364px;" src="/api/v3/attachments/920364/content">

### Environment information Begin of the insertion

End of the insertion Begin of the deletion


End of the deletion **OpenProject installation type**

* Hosted cloud edition

* Packaged installation

* Docker All-in-one container

* Docker-compose installation


**OpenProject version**

_17.2.3_

**Browser**

* [x] Chrome