ChurchCRM up to 7.1.x Public API Login Endpoint /api/public/user/login excessive authentication

CVSS Meta Temp Score
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CTI Interest Score
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5.2$0-$5k0.00

Summaryinfo

A vulnerability was found in ChurchCRM up to 7.1.x. It has been declared as problematic. Impacted is an unknown function of the file /api/public/user/login of the component Public API Login Endpoint. Such manipulation leads to excessive authentication. This vulnerability is traded as CVE-2026-40485. The attack may be launched remotely. There is no exploit available. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability was found in ChurchCRM up to 7.1.x. It has been rated as problematic. Affected by this issue is some unknown processing of the file /api/public/user/login of the component Public API Login Endpoint. The manipulation with an unknown input leads to a excessive authentication vulnerability. Using CWE to declare the problem leads to CWE-307. The product does not implement sufficient measures to prevent multiple failed authentication attempts within a short time frame, making it more susceptible to brute force attacks. Impacted is confidentiality. CVE summarizes:

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.

The advisory is available at github.com. This vulnerability is handled as CVE-2026-40485 since 04/13/2026. The exploitation is known to be easy. The attack may be launched remotely. No form of authentication is required for exploitation. Technical details are known, but there is no available exploit. This vulnerability is assigned to T1110.001 by the MITRE ATT&CK project.

Upgrading to version 7.2.0 eliminates this vulnerability. Applying the patch 214694eb83778e1f5e52b3dfa2a99d0e965c1850 is able to eliminate this problem. The bugfix is ready for download at github.com. The best possible mitigation is suggested to be upgrading to the latest version.

The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2026-23599). If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.3
VulDB Meta Temp Score: 5.2

VulDB Base Score: 5.3
VulDB Temp Score: 5.1
VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA Base Score: 5.3
CNA Vector (GitHub_M): 🔒

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Excessive authentication
CWE: CWE-307 / CWE-799 / CWE-400
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Status: Not defined

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: ChurchCRM 7.2.0
Patch: 214694eb83778e1f5e52b3dfa2a99d0e965c1850

Timelineinfo

04/13/2026 CVE reserved
04/18/2026 +5 days Advisory disclosed
04/18/2026 +0 days VulDB entry created
04/18/2026 +0 days VulDB entry last update

Sourcesinfo

Advisory: GHSA-x2qh-xmhq-4jpx
Status: Confirmed

CVE: CVE-2026-40485 (🔒)
GCVE (CVE): GCVE-0-2026-40485
GCVE (VulDB): GCVE-100-358154
EUVD: 🔒

Entryinfo

Created: 04/18/2026 08:56
Updated: 04/18/2026 18:57
Changes: 04/18/2026 08:56 (67), 04/18/2026 18:57 (1)
Complete: 🔍
Cache ID: 216::103

If you want to get best quality of vulnerability data, you may have to visit VulDB.

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