CVE-2021-43973

Name: CVE-2021-43973
Creator: NVD / NIST
Published: 2022-01-11T20:15:07.667+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 8.8/10EPSS 1.71%

Last modified Jun 17, 2026

CVE-2021-43973 is a high-severity vulnerability rated 8.8/10 on the CVSS scale. An unrestricted file upload vulnerability in /UploadPsIcon.jsp in SysAid ITIL 20.4.74 b10 allows a remote authenticated attacker to upload an arbitrary file via the file parameter in the HTTP POST body. A successful request returns the absolute, server-side filesystem path of the uploaded file.. EPSS estimates a 1.71% chance of exploitation in the next 30 days.

Description

An unrestricted file upload vulnerability in /UploadPsIcon.jsp in SysAid ITIL 20.4.74 b10 allows a remote authenticated attacker to upload an arbitrary file via the file parameter in the HTTP POST body. A successful request returns the absolute, server-side filesystem path of the uploaded file.

Metrics

CVSS 3.1

8.8/10

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

EPSS Probability

1.71%

74.4th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-434

Affected Software

Vendor	Product	Versions	Update
Sysaid	Sysaid	20.4.74	B10

References

https://github.com/atredispartners/advisories/blob/master/ATREDIS-2021-0002.mdBroken Link
https://github.com/atredispartners/advisories/blob/master/ATREDIS-2022-0001.mdPatch, Third Party Advisory
https://www.sysaid.com/it-service-management-software/incident-managementProduct
https://github.com/atredispartners/advisories/blob/master/ATREDIS-2021-0002.mdBroken Link
https://github.com/atredispartners/advisories/blob/master/ATREDIS-2022-0001.mdPatch, Third Party Advisory
https://www.sysaid.com/it-service-management-software/incident-managementProduct

Timeline

Published: Jan 11, 2022
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2021-43973?

How severe is CVE-2021-43973?

CVE-2021-43973 has a CVSS score of 8.8/10 (HIGH severity). The EPSS model estimates a 1.71% probability of exploitation in the next 30 days.

How do I fix CVE-2021-43973?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2021-43973?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST