Home / CVE DB / CVE-2026-40484
Standard
Vulnerability Identifier

CVE-2026-40484

2026-04-18
Severity Assessment
9.1
CRITICAL
CVSS v3.x Score
Clinical Analysis (Description)

ChurchCRM is an open-source church management system. In versions prior to 7.2.0, the database backup restore functionality extracts uploaded archive contents and copies files from the Images/ directory into the web-accessible document root using recursiveCopyDirectory(), which performs no file extension filtering. An authenticated administrator can upload a crafted backup archive containing a PHP webshell inside the Images/ directory, which is then written to a publicly accessible path and executable via HTTP requests, resulting in remote code execution as the web server user. The restore endpoint also lacks CSRF token validation, enabling exploitation through cross-site request forgery targeting an authenticated administrator. This issue has been fixed in version 7.2.0.

Vector Sequencing

Attack Parameters

Attack Vector
Network
Attack Complexity
Low
Privileges Required
High
User Interaction
None
Impact Consequences

Technical Impact

Changed
Scope
High
Confidentiality
High
Integrity
High
Availability
AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H
Weakness Classification

CWE-CWE-269

Timeline

Time Line

PUBLICATION
18 Apr 2026
Impact Statistics

Key Metrics

CVSS Score
9.1
CRITICAL
Remediation Protocol

Recommended Solution

No automatic solution found. Check vendor references.
Patch Library
No direct patch listed in database.
Recommended Actions for Administrators

Immediate Action Plan

1. Inventory

Identify all affected systems in your infrastructure.

2. Assessment

Assess exposure and criticality for your organization.

3. Mitigation

Apply patches or available workarounds.

4. Verification

Test and confirm effectiveness of applied measures.

⚠️ MAXIMUM PRIORITY - Immediate action required