What is CVE-2021-37221?

CVE-2021-37221 is a high-severity vulnerability in Customer Relationship Management System Project, classified under Unrestricted Upload of File with Dangerous Type. CVSS score: 8.8/10. Published 2021-10-27.

How severe is CVE-2021-37221?

High severity. CVSS v3 base score is 8.8 out of 10.

Arbitrary file upload in Customer Relationship Management System Project

CVE-2021-37221

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. .

Vulnerability class: Unrestricted File Upload

Published 2021-10-27 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.011 (65.3th percentile), scored 2026-10-08.

Low probability of exploitation in the next 30 days, but still tracked. 65th percentile — 65.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.011 · newest: 0.011 · change: 0.000

Affected products

Customer Relationship Management System Project — versions 1.0

Weakness classification (CWE)

CWE-434 — Unrestricted Upload of File with Dangerous Type

References

www.exploit-db.com/exploits/50046 (VDB Entry, Third Party Advisory)

Frequently asked questions

What is CVE-2021-37221?: CVE-2021-37221 is a high-severity vulnerability in Customer Relationship Management System Project, classified under Unrestricted Upload of File with Dangerous Type. CVSS score: 8.8/10. Published 2021-10-27.
How severe is CVE-2021-37221?: High severity. CVSS v3 base score is 8.8 out of 10.