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CVE-2026-35573

9.1 · CRITICAL

ChurchCRM is an open-source church management system.

Published Apr 7, 2026CWE-22EPSS 0.92%

Overview

CVE-2026-35573 is a critical-severity vulnerability. It was published on April 7, 2026 and has a CVSS 3.1 base score of 9.1 (CRITICAL).

This vulnerability has a CVSS 3.1 base score of 9.1, rated CRITICAL. It can be exploited remotely over the network. Some level of privileges is required for exploitation.

Technical 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.

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

GitHubgithub.com/ChurchCRM/CRM/security/advisories/GHSA-r6cr-mvr9-f6wxGitHubgithub.com/ChurchCRM/CRM/security/advisories/GHSA-r6cr-mvr9-f6wx

How CyberStrike helps

Frequently asked questions

What is CVE-2026-35573?

CVE-2026-35573 is a critical-severity vulnerability. It was published on April 7, 2026 and has a CVSS 3.1 base score of 9.1 (CRITICAL).

How severe is CVE-2026-35573?

This vulnerability has a CVSS 3.1 base score of 9.1, rated CRITICAL. It can be exploited remotely over the network. Some level of privileges is required for exploitation.

How do I fix or remediate CVE-2026-35573?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2026-35573?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2026-35573 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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