CVE-2019-7216

HIGH

FileChucker 4.99e-free-e02 - Filter Bypass

Title source: llm
STIX 2.1

Exploitation Summary

EIP tracks 1 public exploit for CVE-2019-7216. PoCs published by Ekultek.

AI-analyzed exploit summary The repository describes a filter bypass vulnerability in `filechucker.cgi` and `filechucker_prefs.cgi` that allows remote code execution by uploading a malicious file with a crafted extension. The bypass involves appending specific patterns to the filename to evade extension filtering.

Description

An issue was discovered in FileChucker 4.99e-free-e02. filechucker.cgi has a filter bypass that allows a malicious user to upload any type of file by using % characters within the extension, e.g., file.%ph%p becomes file.php.

Exploits (1)

nomisec WRITEUP 10 stars
by Ekultek · poc
https://github.com/Ekultek/CVE-2019-7216

The repository describes a filter bypass vulnerability in `filechucker.cgi` and `filechucker_prefs.cgi` that allows remote code execution by uploading a malicious file with a crafted extension. The bypass involves appending specific patterns to the filename to evade extension filtering.

Classification
Writeup 90%
Attack Type
Rce
Complexity
Trivial
Reliability
Reliable
Target: filechucker.cgi version 5.09 and filechucker_prefs.cgi version 4.99e-free-e02
No auth needed
Prerequisites: Access to the upload functionality in the vulnerable application
devstral-2 · analyzed Feb 16, 2026 Full analysis →

References (2)

Core 2
Core References
Exploit, Third Party Advisory x_refsource_misc
https://github.com/ekultek/cve-2019-7216
Release Notes, Vendor Advisory x_refsource_misc
https://encodable.com/filechucker/changelog/

Scores

CVSS v3 7.8
EPSS 0.0198
EPSS Percentile 78.0%
Attack Vector LOCAL
CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Details

Status published
Products (2)
encodable/filechucker 4.99e-free-e02
encodable/filechucker 5.09
Published Jan 31, 2019
Tracked Since Feb 18, 2026