Is CVE-2021-37221 actively exploited?

No active exploitation of CVE-2021-37221 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2021-37221 be exploited remotely?

Yes. CVE-2021-37221 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2021-37221?

CVE-2021-37221 has a CVSS score of 8.8 (HIGH).

HOME VULNERABILITIESCVE-2021-37221

HIGH

CVE-2021-37221

CWE-434Published: October 27, 2021· Updated: Jun 17, 2026

8.8

CVSS v3.1

Official Description

A file upload vulnerability exists in Sourcecodester Customer Relationship Management System 1.0 via the account update option & customer create option, which could let a remote malicious user upload an arbitrary php file. .

NVD Source

Technical Analysis

CVE-2021-37221 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

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

A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 8.8.