Published April 7, 2026 · Updated April 8, 2026
CVE-2026-35573 is a critical path traversal vulnerability found in ChurchCRM versions prior to 6.5.3. Authenticated administrators can exploit this flaw to upload arbitrary files, leading to remote code execution through the overwriting of Apache `.htaccess` configuration files. Upgrade to version 6.5.3 or later to mitigate this risk.
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.
CVE-2026-35573 is a critical vulnerability in ChurchCRM versions before 6.5.3 allowing remote code execution. Authenticated admins can manipulate file uploads to overwrite `.htaccess` files. Upgrade to mitigate.