CVE-2021-43258

HIGH

ChurchInfo 1.2.13-1.3.0 - Authenticated Remote Code Execution via Email Attachment Upload

Title source: llm
STIX 2.1

Exploitation Summary

EIP tracks 2 public exploits for CVE-2021-43258. PoCs published by MRvirusIR, m4lwhere <[email protected]>, including Metasploit module exploits/multi/http/churchinfo_upload_exec.

AI-analyzed exploit summary This is a Metasploit module for CVE-2021-43258, exploiting a file upload vulnerability in ChurchInfo 1.2.13-1.3.0. It allows authenticated users to upload a malicious PHP file via a draft email attachment, leading to remote code execution.

Description

CartView.php in ChurchInfo 1.3.0 allows attackers to achieve remote code execution through insecure uploads. This requires authenticated access tot he ChurchInfo application. Once authenticated, a user can add names to their cart, and compose an email. Uploading an attachment for the email stores the attachment on the site in the /tmp_attach/ folder where it can be accessed with a GET request. There are no limitations on files that can be attached, allowing for malicious PHP code to be uploaded and interpreted by the server.

Exploits (2)

nomisec WORKING POC 2 stars
by MRvirusIR · poc
https://github.com/MRvirusIR/CVE-2021-43258

This is a Metasploit module for CVE-2021-43258, exploiting a file upload vulnerability in ChurchInfo 1.2.13-1.3.0. It allows authenticated users to upload a malicious PHP file via a draft email attachment, leading to remote code execution.

Classification
Working Poc 95%
Attack Type
Rce
Complexity
Moderate
Reliability
Reliable
Target: ChurchInfo 1.2.13-1.3.0
Auth required
Prerequisites: Valid credentials for ChurchInfo application · Network access to the target
devstral-2 · analyzed Feb 16, 2026 Full analysis →
metasploit WORKING POC NORMAL
by m4lwhere <[email protected]> · rubypocphp
https://github.com/rapid7/metasploit-framework/blob/master/modules/exploits/multi/http/churchinfo_upload_exec.rb

This Metasploit module exploits an authenticated RCE vulnerability in ChurchInfo 1.2.13-1.3.0 by uploading a malicious PHP file as an email attachment, which is then accessible via the web server's /tmp_attach/ directory.

Classification
Working Poc 95%
Attack Type
Rce
Complexity
Moderate
Reliability
Reliable
Target: ChurchInfo 1.2.13-1.3.0
Auth required
Prerequisites: Valid credentials for ChurchInfo application · Access to the ChurchInfo web interface
devstral-2 · analyzed Feb 16, 2026 Full analysis →

References (3)

Core 3

Scores

CVSS v3 8.8
EPSS 0.1052
EPSS Percentile 95.2%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CISA SSVC

Vulnrichment
Exploitation poc
Automatable no
Technical Impact total

Details

CWE
CWE-434
Status published
Products (1)
churchdb/churchinfo 1.2.13 - 1.3.0
Published Nov 23, 2022
Tracked Since Feb 18, 2026