CVE-2021-37221

HIGH

Customer Relationship Management System - Unrestricted File Upload

Title source: rule
STIX 2.1

Exploitation Summary

EIP tracks 1 public exploit for CVE-2021-37221. PoCs published by Ishan Saha.

AI-analyzed exploit summary This exploit demonstrates a file upload vulnerability in Customer Relationship Management System (CRM) 1.0, allowing remote code execution by uploading a malicious PHP file disguised as an image. The exploit automates user registration, file upload, and shell interaction.

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. .

Exploits (1)

exploitdb WORKING POC
by Ishan Saha · textwebappsphp
https://www.exploit-db.com/exploits/50046

This exploit demonstrates a file upload vulnerability in Customer Relationship Management System (CRM) 1.0, allowing remote code execution by uploading a malicious PHP file disguised as an image. The exploit automates user registration, file upload, and shell interaction.

Classification
Working Poc 95%
Attack Type
Rce
Complexity
Moderate
Reliability
Reliable
Target: Customer Relationship Management System (CRM) 1.0
Auth required
Prerequisites: Network access to the target CRM system · Python environment with required libraries (requests, colorama, beautifulsoup4)
devstral-2 · analyzed Feb 18, 2026 Full analysis →

References (1)

Core 1
Core References
Third Party Advisory, VDB Entry x_refsource_misc
https://www.exploit-db.com/exploits/50046

Scores

CVSS v3 8.8
EPSS 0.0109
EPSS Percentile 61.0%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Details

CWE
CWE-434
Status published
Products (1)
customer_relationship_management_system_project/customer_relationship_management_system 1.0
Published Oct 27, 2021
Tracked Since Feb 18, 2026