CVE-2026-35573
Critical
Description
ChurchCRM is an open-source church management system. Prior to 6.5.3, a path traversal vulnerability in ChurchCRM's backup restore functionality allows authenticated administrators to upload arbitrary files and achieve remote code execution by overwriting Apache .htaccess configuration files. The vulnerability exists in src/ChurchCRM/Backup/RestoreJob.php. The $rawUploadedFile['name'] parameter is user-controlled and allows uploading files with arbitrary names to /var/www/html/tmp_attach/ChurchCRMBackups/. This vulnerability is fixed in 6.5.3.
SeverityCritical
CVSS9.1
Exploit probability57. percentile0.8%
ProductChurchcrm
PublishedApr 7, 2026
First seenApr 7, 2026
How to fix
Update
- churchcrm churchcrm6.5.3 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| churchcrm churchcrm | v < 6.5.3 | 6.5.3 |
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