CVE-2021-43970

Name: CVE-2021-43970
Creator: NVD / NIST
Published: 2022-03-10T17:44:11.86+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 8.8/10EPSS 1.75%

Last modified Jun 17, 2026

CVE-2021-43970 is a high-severity vulnerability rated 8.8/10 on the CVSS scale. An arbitrary file upload vulnerability exists in albumimages.jsp in Quicklert for Digium 10.0.0 (1043) via a .mp3;.jsp filename for a file that begins with audio data bytes. It allows an authenticated (low privileged) attacker to execute remote code on the target server within the context of application's permissions (SYSTEM).. EPSS estimates a 1.75% chance of exploitation in the next 30 days.

Description

An arbitrary file upload vulnerability exists in albumimages.jsp in Quicklert for Digium 10.0.0 (1043) via a .mp3;.jsp filename for a file that begins with audio data bytes. It allows an authenticated (low privileged) attacker to execute remote code on the target server within the context of application's permissions (SYSTEM).

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

1.75%

75.0th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-434

Affected Software

Vendor	Product	Versions
Quicklert	Quicklert	10.0.0

References

https://quicklert.comVendor Advisory
https://www.assurainc.com/assura-announces-discovery-of-two-vulnerabilities-in-quicklert-for-digium-switchvox/amp-on/Exploit, Third Party Advisory
https://quicklert.comVendor Advisory
https://www.assurainc.com/assura-announces-discovery-of-two-vulnerabilities-in-quicklert-for-digium-switchvox/amp-on/Exploit, Third Party Advisory

Timeline

Published: Mar 10, 2022
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2021-43970?

How severe is CVE-2021-43970?

CVE-2021-43970 has a CVSS score of 8.8/10 (HIGH severity). The EPSS model estimates a 1.75% probability of exploitation in the next 30 days.

How do I fix CVE-2021-43970?

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-2021-43970?

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

Scan your code now

Source: NVD / NIST