Is CVE-2021-44076 actively exploited?

No active exploitation of CVE-2021-44076 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2021-44076 be exploited remotely?

Yes. CVE-2021-44076 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2021-44076?

CVE-2021-44076 has a CVSS score of 4.8 (MEDIUM).

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MEDIUM

CVE-2021-44076

CWE-79Published: September 15, 2022· Updated: Jun 17, 2026

4.8

CVSS v3.1

Official Description

An issue was discovered in CrushFTP 9. The creation of a new user through the /WebInterface/UserManager/ interface allows an attacker, with access to the administration panel, to perform Stored Cross-Site Scripting (XSS). The payload can be executed in multiple scenarios, for example when the user's page appears in the Most Visited section of the page.

NVD Source

Technical Analysis

CVE-2021-44076 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

Exploitation requires high privileges, which limits the exposure to scenarios where an attacker has already gained initial access.

The vulnerability has a "Changed" scope, meaning successful exploitation can impact components beyond the vulnerable component itself — such as the host operating system or adjacent services.

From a weakness classification perspective (CWE-79): Cross-site scripting (XSS) vulnerabilities allow attackers to inject malicious scripts into web pages viewed by other users.