ChurchCRM: Authenticated Remote Code Execution via Unrestricted PHP File Write in Database Restore Function

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Summary

CVECVE-2026-40484
StatePUBLISHED
AssignerGitHub_M
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-04-18 00:16:39 UTC
Updated2026-04-18 00:16:39 UTC
DescriptionChurchCRM 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.

Risk And Classification

Primary CVSS: v3.1 9.1 CRITICAL from [email protected]

CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H

Problem Types: CWE-269 | CWE-434 | CWE-552 | CWE-269 CWE-269: Improper Privilege Management | CWE-434 CWE-434: Unrestricted Upload of File with Dangerous Type | CWE-552 CWE-552: Files or Directories Accessible to External Parties

VersionSourceTypeScoreSeverityVector
3.1[email protected]Secondary9.1CRITICALCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H
3.1CNADECLARED9.1CRITICALCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H

CVSS v3.1 Breakdown

Attack Vector
Network
Attack Complexity
Low
Privileges Required
High
User Interaction
None
Scope
Changed
Confidentiality
High
Integrity
High
Availability
High

CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA ChurchCRM CRM affected < 7.2.0 Not specified

References

ReferenceSourceLinkTags
github.com/ChurchCRM/CRM/security/advisories/GHSA-2932-77f9-62fx [email protected] github.com
github.com/ChurchCRM/CRM/pull/8610 [email protected] github.com
github.com/ChurchCRM/CRM/commit/68be1d12bc4cc1429575ae797ef05efe47030d39 [email protected] github.com
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