How severe is CVE-2025-66397?

CVE-2025-66397 has a CVSS 3.x base score of 8.3, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is low, integrity high, and availability high.

Is CVE-2025-66397 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (17th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2025-66397?

CVE-2025-66397 affects Churchcrm. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2025-66397?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

Does CVE-2025-66397 have an EU (EUVD) identifier?

Yes. CVE-2025-66397 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-203928.

When was CVE-2025-66397 published?

CVE-2025-66397 was published on 2025-12-17 and last updated on 2026-06-17.

CVE-2025-66397

CVE-2025-66397 is a high-severity vulnerability in Churchcrm with a CVSS 3.x base score of 8.3. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-284.

Key facts

Severity: High (CVSS 3.x base score 8.3)
EPSS exploit prediction: 0% (17th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-203928
Weakness: CWE-284
Affected product: Churchcrm
Published: 2025-12-17
Last modified: 2026-06-17

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.

Frequently asked questions

What is CVE-2025-66397?: 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.
How severe is CVE-2025-66397?: CVE-2025-66397 has a CVSS 3.x base score of 8.3, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is low, integrity high, and availability high.
Is CVE-2025-66397 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (17th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2025-66397?: CVE-2025-66397 affects Churchcrm. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2025-66397?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
Does CVE-2025-66397 have an EU (EUVD) identifier?: Yes. CVE-2025-66397 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-203928.
When was CVE-2025-66397 published?: CVE-2025-66397 was published on 2025-12-17 and last updated on 2026-06-17.

References

https://github.com/ChurchCRM/CRM/security/advisories/GHSA-32vr-ch3p-wmr5

Affected products (1)

cpe:2.3:a:churchcrm:churchcrm:*:*:*:*:*:*:*:*

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