CVE-2026-35574: ChurchCRM is an open-source church management system

Q: How do I fix CVE-2026-35574?

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

Q: Is CVE-2026-35574 being exploited?

CVE-2026-35574 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-2026-35574 affect?

CVE-2026-35574 affects churchcrm. Severity is high (CVSS 7.3). ChurchCRM is an open-source church management system. Prior to 6.5.3, a stored Cross-Site Scripting (XSS) vulnerability in ChurchCRM's Note Editor allows authenticated users with note-adding permissions to execute arbitrary JavaScript code

Q: How urgent is CVE-2026-35574?

Priority 36/100. High severity; Public exploit reference

Routine

HIGH 7.3UPGRADE

CVE-2026-35574 is a high-severity flaw (CVSS 7.3) 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 stored Cross-Site Scripting (XSS) vulnerability in ChurchCRM's Note Editor allows authenticated users with note-adding permissions to execute arbitrary JavaScript code in the context of other users' browsers, including administrators. This can lead to session hijacking, privilege escalation, and unauthorized access to sensitive church member data. This vulnerability is fixed

Why this priority

High severity
Public exploit reference

A fixed release or distro patch exists.

Risk facts

CVSS score	7.3 (High)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	Low
User interaction	Required
EPSS exploit chance	0.3% (top 77%)
CISA exploited list	No
Weakness	CWE-79
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 17:16 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-2026-35574?

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

Is CVE-2026-35574 being exploited?

CVE-2026-35574 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-2026-35574 affect?

CVE-2026-35574 affects churchcrm. Severity is high (CVSS 7.3). ChurchCRM is an open-source church management system. Prior to 6.5.3, a stored Cross-Site Scripting (XSS) vulnerability in ChurchCRM's Note Editor allows authenticated users with note-adding permissions to execute arbitrary JavaScript code

How urgent is CVE-2026-35574?

Priority 36/100. High severity; Public exploit reference

Related CVEs

CVE-2026-35573 CRITICAL 9.1 UPGRADE ChurchCRM is an open-source church management system
CVE-2026-39318 HIGH 8.8 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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