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CVE-2021-43258 is a vulnerability in ChurchInfo 1.3.0, specifically in CartView.php, that allows authenticated users to upload arbitrary files as email attachments. The uploaded files are stored in the /tmp_attach/ directory without any file type restrictions or validation. This enables attackers to upload malicious PHP scripts, which can then be executed by accessing them directly via a GET request, resulting in remote code execution on the server.
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1 valid exploit after Mallory filtered fakes, detection scripts, and README-only repos.
This repository contains a single Metasploit module (churchinfo_upload_exec.rb) that exploits an authenticated remote code execution (RCE) vulnerability in ChurchInfo versions 1.2.13 through 1.3.0 (CVE-2021-43258). The exploit works by logging into the ChurchInfo web application with valid credentials, adding items to the cart, and then uploading a malicious PHP payload as an email attachment via the CartView.php endpoint. The attachment is stored in the /tmp_attach/ directory, which is web-accessible, allowing the attacker to trigger execution of the payload by sending a GET request to the uploaded file. The module includes logic to check the target's version and ensure it is vulnerable, and it cleans up the payload after execution. The exploit provides remote code execution as the web server user. The code is written in Ruby and is designed to be used within the Metasploit framework.
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