CVE-2021-44043: Uipath App Studio

Medium severity, CVSS 5.4. EPSS: 0.5% chance of exploitation in the next 30 days.

An issue was discovered in UiPath App Studio 21.4.4. There is a persistent XSS vulnerability in the file-upload functionality for uploading icons when attempting to create new Apps. An attacker with minimal privileges in the application can build their own App and upload a malicious file containing an XSS payload, by uploading an arbitrary file and modifying the MIME type in a subsequent HTTP request. This then allows the file to be stored and retrieved from the server by other users in the same organization.

Affected products

• Uipath App Studio: version 21.4.4 only

Published 2021-12-14. Last modified 2026-06-17.