CVE-2021-44043

Severity: medium (CVSS 5.4 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.5% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2021-12-14 · updated 2026-06-17
Weakness: CWE-79

Description

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: 21.4.4

References

https://docs.uipath.com/apps/v2021.10/docs/2021-10-1
https://docs.uipath.com/robot/docs/uipath-assistant
https://docs.uipath.com/apps/v2021.10/docs/2021-10-1
https://docs.uipath.com/robot/docs/uipath-assistant

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