CVE-2017-17976

CRITICAL

Perfex CRM 1.9.7 - Unrestricted File Upload and Remote Code Execution

Title source: llm
STIX 2.1

Exploitation Summary

EIP tracks 1 public exploit for CVE-2017-17976. PoCs published by Ahmad Mahfouz.

AI-analyzed exploit summary This exploit demonstrates an unrestricted file upload vulnerability in PerfexCRM 1.9.7 via a misconfigured elFinder plugin. It bypasses file extension restrictions by using .php5 and injects PHP code into the uploaded file, leading to remote code execution.

Description

In Utilities.php in Perfex CRM 1.9.7, Unrestricted file upload can lead to remote code execution.

Exploits (1)

exploitdb WORKING POC
by Ahmad Mahfouz · textwebappsphp
https://www.exploit-db.com/exploits/43590

This exploit demonstrates an unrestricted file upload vulnerability in PerfexCRM 1.9.7 via a misconfigured elFinder plugin. It bypasses file extension restrictions by using .php5 and injects PHP code into the uploaded file, leading to remote code execution.

Classification
Working Poc 90%
Attack Type
Rce
Complexity
Trivial
Reliability
Reliable
Target: PerfexCRM v1.9.7
Auth required
Prerequisites: Access to admin utilities · Valid session/authentication
devstral-2 · analyzed Feb 16, 2026 Full analysis →

References (2)

Core 2
Core References
Exploit, Third Party Advisory, VDB Entry exploit x_refsource_exploit-db
https://www.exploit-db.com/exploits/43590/
Exploit, Third Party Advisory, VDB Entry x_refsource_misc
http://packetstormsecurity.com/files/145903/PerfexCRM-1.9.7-Arbitrary-File-Upload.html

Scores

CVSS v3 9.8
EPSS 0.1274
EPSS Percentile 95.8%
Attack Vector NETWORK
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Details

CWE
CWE-434
Status published
Products (1)
perfexcrm/perfex_crm 1.9.7
Published Jan 26, 2018
Tracked Since Feb 18, 2026