CVE-2021-44043: An issue was discovered in UiPath App Studio 21.4.4

Routine

MEDIUM 5.4DOWNGRADE

CVE-2021-44043 is a medium-severity flaw (CVSS 5.4) affecting app studio. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

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 re

Why this priority

No elevated risk signals yet

No fix is published yet: follow the downgrade or mitigation steps.

Risk facts

CVSS score	5.4 (Medium)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	Low
User interaction	Required
EPSS exploit chance	0.5% (top 59%)
CISA exploited list	No
Weakness	CWE-79
Published	2021-12-14
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: uipath

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2021-12-14 18:15 UTCPublished CVE record published
2026-06-17 04:11 UTCUpdated Record last modified

uipath app studio DOWNGRADE

Affected: 21.4.4

Fixed in: no fixed release known

Safe to downgrade to: a release before 21.4.4

1. Check installed version

apt-cache policy app-studio || rpm -q app-studio || app-studio --version

2. No fixed release: DOWNGRADE to a release before 21.4.4 (Debian / Ubuntu)

apt-cache madison app-studio sudo apt install app-studio=<VERSION_BEFORE_21.4.4> sudo apt-mark hold app-studio

2. No fixed release: DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list app-studio sudo dnf downgrade app-studio-<VERSION_BEFORE_21.4.4> sudo dnf versionlock add app-studio

Downgrade risk

Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.

After downgrade

Restart the service, and keep the package held until a fixed release ships.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2021-44043?

app studio: downgrade or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2021-44043 being exploited?

CVE-2021-44043 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2021-44043 affect?

CVE-2021-44043 affects app studio. Severity is medium (CVSS 5.4). 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

How urgent is CVE-2021-44043?

Priority 29/100. No elevated risk signals yet.

References

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