Riskcovery

CVE-2026-40485

ChurchCRM: Username Enumeration via Differential Response in Public Login API

State
Published
Severity
5.3 Medium
Published
Apr 17, 2026
Updated
Apr 20, 2026
Reserved
Apr 13, 2026

Read the record on cve.org

Description

ChurchCRM is an open-source church management system. In versions prior to 7.2.0, the public API login endpoint (/api/public/user/login) returns distinguishable HTTP response codes based on whether a username exists: 404 for non-existent users and 401 for valid users with incorrect passwords. An unauthenticated attacker can exploit this difference to enumerate valid usernames, with no rate limiting or account lockout to impede the process. This issue has been fixed in version 7.2.0.

Scores

CVSSScoreVectorSource
3.15.3 MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:NGitHub_M

Weaknesses

  • CWE-307 Improper Restriction of Excessive Authentication Attempts
  • CWE-204 Observable Response Discrepancy

Affected Products

ProductVersions
CRMChurchCRM
  • < 7.2.0Affected

References

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