Is CVE-2021-44937 actively exploited?

No active exploitation of CVE-2021-44937 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2021-44937 be exploited remotely?

Yes. CVE-2021-44937 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2021-44937?

CVE-2021-44937 has a CVSS score of 5.3 (MEDIUM).

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MEDIUM

CVE-2021-44937

CWE-287Published: December 14, 2021· Updated: Jun 17, 2026

5.3

CVSS v3.1

Official Description

glFusion CMS v1.7.9 is affected by an arbitrary user registration vulnerability in /public_html/users.php. An attacker can register with the mailbox of any user. When users want to register, they will find that the mailbox has been occupied.

NVD Source

Technical Analysis

CVE-2021-44937 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.

From a weakness classification perspective (CWE-287): Authentication bypass vulnerabilities allow attackers to access protected resources without valid credentials.