CVE-2026-35573: ChurchCRM is an open-source church management system

Q: How do I fix CVE-2026-35573?

churchcrm: upgrade to 6.5.3. Exact commands for each OS are on this page.

Q: Is CVE-2026-35573 being exploited?

CVE-2026-35573 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2026-35573 affect?

CVE-2026-35573 affects churchcrm. Severity is critical (CVSS 9.1). 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

Q: How urgent is CVE-2026-35573?

Priority 51/100. Critical severity; Public exploit reference

This month

CRITICAL 9.1UPGRADE

CVE-2026-35573 is a critical-severity flaw (CVSS 9.1) affecting churchcrm. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

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 a

Why this priority

Critical severity
Public exploit reference

A fixed release or distro patch exists.

Risk facts

CVSS score	9.1 (Critical)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	High
User interaction	None
EPSS exploit chance	0.8% (top 45%)
CISA exploited list	No
Weakness	CWE-22, CWE-434
Published	2026-04-07
Last modified	2026-10-26

Publisher (CNA): GitHub, Inc. · Vendor: churchcrm

Last updated 2026-10-26 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2026-04-07 18:16 UTCPublished CVE record published
2026-10-26 22:10 UTCUpdated Record last modified

churchcrm churchcrm UPGRADE

Affected: < 6.5.3

Fixed in: 6.5.3

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy churchcrm || rpm -q churchcrm || churchcrm --version

2. UPGRADE to 6.5.3 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade churchcrm

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade churchcrm

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2026-35573?

churchcrm: upgrade to 6.5.3. Exact commands for each OS are on this page.

Is CVE-2026-35573 being exploited?

CVE-2026-35573 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2026-35573 affect?

CVE-2026-35573 affects churchcrm. Severity is critical (CVSS 9.1). 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

How urgent is CVE-2026-35573?

Priority 51/100. Critical severity; Public exploit reference

Software pages

PHP vulnerabilities

Related CVEs

CVE-2026-39318 HIGH 8.8 UPGRADE ChurchCRM is an open-source church management system
CVE-2026-35574 HIGH 7.3 UPGRADE ChurchCRM is an open-source church management system
CVE-2026-39328 HIGH 8.9 UPGRADE ChurchCRM is an open-source church management system
CVE-2026-39333 HIGH 8.7 UPGRADE ChurchCRM is an open-source church management system
CVE-2026-39340 HIGH 8.1 UPGRADE ChurchCRM is an open-source church management system

References

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