ChurchCRM up to 6.5.2 Backup Restore RestoreJob.php tmp_attach rawUploadedFile path traversal

Summaryinfo

A vulnerability was found in ChurchCRM up to 6.5.2 and classified as critical. This vulnerability affects the function tmp_attach of the file src/ChurchCRM/Backup/RestoreJob.php of the component Backup Restore Handler. The manipulation of the argument rawUploadedFile results in path traversal. This vulnerability is reported as CVE-2026-35573. The attack can be launched remotely. No exploit exists. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability classified as critical has been found in ChurchCRM up to 6.5.2. Affected is the function tmp_attach of the file src/ChurchCRM/Backup/RestoreJob.php of the component Backup Restore Handler. The manipulation of the argument rawUploadedFile with an unknown input leads to a path traversal vulnerability. CWE is classifying the issue as CWE-22. The product uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the product does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory. This is going to have an impact on confidentiality, integrity, and availability. CVE summarizes:

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.

The advisory is available at github.com. This vulnerability is traded as CVE-2026-35573 since 04/03/2026. The exploitability is told to be easy. It is possible to launch the attack remotely. Additional levels of successful authentication are required for exploitation. Technical details are known, but there is no available exploit. This vulnerability is assigned to T1006 by the MITRE ATT&CK project.

By approaching the search of inurl:src/ChurchCRM/Backup/RestoreJob.php it is possible to find vulnerable targets with Google Hacking.

Upgrading to version 6.5.3 eliminates this vulnerability.

If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

Name

• ChurchCRM

Version

• 6.5.0
• 6.5.1
• 6.5.2

License

• open-source

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If you want to get best quality of vulnerability data, you may have to visit VulDB.

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