CVE-2021-46428

CRITICAL

Sourcecodester Simple Chatbot App <1.0 - RCE

Title source: llm
STIX 2.1

Exploitation Summary

EIP tracks 1 public exploit for CVE-2021-46428. PoCs published by Saud Alenazi.

AI-analyzed exploit summary This exploit demonstrates a file upload vulnerability in Simple Chatbot Application 1.0, allowing an attacker to upload a malicious PHP file disguised as an avatar, leading to remote code execution (RCE). The PoC includes a multipart form request to upload a PHP shell and a subsequent request to execute arbitrary commands via the uploaded shell.

Description

A Remote Code Execution (RCE) vulnerability exists in Sourcecodester Simple Chatbot Application 1.0 ( and previous versions via the bot_avatar parameter in SystemSettings.php.

Exploits (1)

exploitdb WORKING POC
by Saud Alenazi · textwebappsphp
https://www.exploit-db.com/exploits/50672

This exploit demonstrates a file upload vulnerability in Simple Chatbot Application 1.0, allowing an attacker to upload a malicious PHP file disguised as an avatar, leading to remote code execution (RCE). The PoC includes a multipart form request to upload a PHP shell and a subsequent request to execute arbitrary commands via the uploaded shell.

Classification
Working Poc 100%
Attack Type
Rce
Complexity
Trivial
Reliability
Reliable
Target: Simple Chatbot Application 1.0
Auth required
Prerequisites: Access to a valid session (PHPSESSID) · Ability to send multipart form requests to the target endpoint
devstral-2 · analyzed Feb 16, 2026 Full analysis →

References (2)

Core 2
Core References
Exploit, Third Party Advisory, VDB Entry x_refsource_misc
https://www.exploit-db.com/exploits/50672
Exploit, Issue Tracking, Third Party Advisory x_refsource_misc
https://cxsecurity.com/issue/WLB-2022010093

Scores

CVSS v3 9.8
EPSS 0.0323
EPSS Percentile 86.6%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Details

CWE
CWE-434
Status published
Products (1)
simple_chatbot_application_project/simple_chatbot_application 1.0
Published Jan 27, 2022
Tracked Since Feb 18, 2026