CVE-2013-3591

HIGH

vtiger CRM 5.3 and 5.4 - Unrestricted Upload of File with Dangerous Type

Title source: llm
STIX 2.1

Exploitation Summary

EIP tracks 2 public exploits for CVE-2013-3591. PoCs published by Metasploit, including Metasploit module exploits/multi/http/vtiger_php_exec.

AI-analyzed exploit summary This Metasploit module exploits an authenticated file upload vulnerability in vTiger CRM 5.4.0 and 5.3.0, allowing arbitrary PHP code execution by uploading a malicious PHP script to the 'files' directory.

Description

vTiger CRM 5.3 and 5.4: 'files' Upload Folder Arbitrary PHP Code Execution Vulnerability

Exploits (2)

exploitdb WORKING POC VERIFIED
by Metasploit · rubyremotephp
https://www.exploit-db.com/exploits/29319

This Metasploit module exploits an authenticated file upload vulnerability in vTiger CRM 5.4.0 and 5.3.0, allowing arbitrary PHP code execution by uploading a malicious PHP script to the 'files' directory.

Classification
Working Poc 100%
Attack Type
Rce
Complexity
Moderate
Reliability
Reliable
Target: vTiger CRM v5.4.0, v5.3.0
Auth required
Prerequisites: Valid credentials for vTiger CRM · Access to the file upload functionality
devstral-2 · analyzed Feb 16, 2026 Full analysis →
metasploit WORKING POC EXCELLENT
rubypoc
https://github.com/rapid7/metasploit-framework/blob/master/modules/exploits/multi/http/vtiger_php_exec.rb

This Metasploit module exploits an authenticated file upload vulnerability in vTiger CRM, allowing arbitrary PHP code execution by uploading a malicious PHP script to the 'files' directory. The exploit leverages insufficient folder permissions to achieve remote code execution.

Classification
Working Poc 95%
Attack Type
Rce
Complexity
Moderate
Reliability
Reliable
Target: vTiger CRM v5.4.0, v5.3.0
Auth required
Prerequisites: Valid credentials for vTiger CRM · Access to the file upload functionality
devstral-2 · analyzed Feb 16, 2026 Full analysis →

References (4)

Core 4
Core References
Third Party Advisory, VDB Entry x_refsource_misc
http://www.securityfocus.com/bid/63454
Exploit, Third Party Advisory, VDB Entry x_refsource_misc
http://www.exploit-db.com/exploits/29319

Scores

CVSS v3 8.8
EPSS 0.4310
EPSS Percentile 98.6%
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 (2)
vtiger/vtiger_crm 5.3.0
vtiger/vtiger_crm 5.4.0
Published Feb 07, 2020
Tracked Since Feb 18, 2026