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CVE-2025-66397

Churchcrm broken access control

8.3 HIGHPublic exploitEPSS 0.29%
  1. Published17 Dec 2025

Description

ChurchCRM is an open-source church management system. Prior to version 6.5.3, the allowRegistration, acceptKiosk, reloadKiosk, and identifyKiosk functions in the Kiosk Manager feature suffers from broken access control, allowing any authenticated user to allow and accept kiosk registrations, and perform other Kiosk Manager actions such as reload and identify. Version 6.5.3 fixes the issue.

CVSS 3.1 breakdown

Attack vectorNetwork
Attack complexityLow
Privileges requiredLow
User interactionNone
ScopeUnchanged
ConfidentialityLow
IntegrityHigh
AvailabilityHigh
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:H/A:H

Affected products

Churchcrm< 6.5.3

Remediation

Fixed in
Churchcrm≥ 6.5.3

References

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Frequently asked

Is CVE-2025-66397 being actively exploited?

CVE-2025-66397 is not in the CISA KEV catalog. A public exploit reference exists, so treat it as exploitable. Its EPSS exploit probability is 0.29%.

How severe is CVE-2025-66397?

CVE-2025-66397 has a CVSS 3.1 base score of 8.3, rated high. EPSS estimates a 0.29% probability of exploitation.

Which products are affected by CVE-2025-66397?

Affected products include Churchcrm.

How do I fix CVE-2025-66397?

Upgrade affected software to a fixed version, for example Churchcrm 6.5.3 or later, then confirm no affected versions remain in your inventory.

How Secuno handles this

Secuno correlates vulnerabilities like CVE-2025-66397 against the real software inventory on every managed device, as each hourly inventory arrives. Rather than a static severity, each match is scored in context: exploit availability, EPSS, the asset's exposure, and business criticality decide where it lands in the queue. If an affected version is present anywhere across your portfolio, it surfaces automatically with a prioritised remediation path.

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Data from the NVD, CISA KEV catalog and FIRST EPSS. CVSS 3.1 base score shown where available.