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CVE-2026-39339— ChurchCRM has an API Authentication Bypass

Quick assessment

Affected
ChurchCRM CRM
Exploitation
Public or AI PoC available; prioritize validation
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

ChurchCRM是ChurchCRM开源的一个为教会打造的开源 CRM 系统。 ChurchCRM 7.1.0之前版本存在安全漏洞，该漏洞源于API中间件存在身份验证绕过，可能导致未经验证的攻击者访问所有受保护的API端点。

CVSS 9.1 · Critical EPSS 1.82% · P78

Public Exploits 1

Nuclei · 1 CVE-2026-39339.yaml [template]

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application
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I. Basic Information for CVE-2026-39339

Vulnerability Information
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Vulnerability Title
ChurchCRM has an API Authentication Bypass
Source: CVE Program / CVE List V5
Vulnerability Description
ChurchCRM is an open-source church management system. Prior to 7.1.0, a critical authentication bypass vulnerability in ChurchCRM's API middleware (ChurchCRM/Slim/Middleware/AuthMiddleware.php) allows unauthenticated attackers to access all protected API endpoints by including "api/public" anywhere in the request URL, leading to complete exposure of church member data and system information. This vulnerability is fixed in 7.1.0.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
访问控制不恰当
Source: CVE Program / CVE List V5
Vulnerability Title
ChurchCRM 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
ChurchCRM是ChurchCRM开源的一个为教会打造的开源 CRM 系统。 ChurchCRM 7.1.0之前版本存在安全漏洞，该漏洞源于API中间件存在身份验证绕过，可能导致未经验证的攻击者访问所有受保护的API端点。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

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Affected Products

Vendor Product Affected Versions CPE Subscribe
ChurchCRM CRM < 7.1.0 -

II. Public POCs for CVE-2026-39339

# POC Description Source Link Shenlong Link
1 ChurchCRM < 7.1.0 contains an authentication bypass caused by improper API middleware URL handling in ChurchCRM/Slim/Middleware/AuthMiddleware.php, letting unauthenticated attackers access protected API endpoints, exploit requires crafted request URL with 'api/public https://github.com/projectdiscovery/nuclei-templates/blob/main/http/cves/2026/CVE-2026-39339.yaml POC Details
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III. Intelligence Information for CVE-2026-39339

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Vendor Advisories for CVE-2026-39339 (1)

Same Patch Batch · ChurchCRM · 2026-04-07 · 28 CVEs total

CVE-2026-39337 10.0 CRITICAL ChurchCRM Affected by Unauthenticated RCE in Install Wizard
CVE-2026-35573 9.1 CRITICAL ChurchCRM has a Path traversal leads to RCE
CVE-2026-39328 8.9 HIGH ChurchCRM has Stored XSS in Social Profile Fields
CVE-2026-39326 8.8 HIGH ChurchCRM has a Blind SQL injection in PropertyTypeEditor.php
CVE-2026-39334 8.8 HIGH ChurchCRM has a Blind SQL injection in SettingsIndividual.php
CVE-2026-39327 8.8 HIGH ChurchCRM has a SQL injection in MemberRoleChange.php
CVE-2026-39318 8.8 HIGH ChurchCRM has a DDL SQL Injection in GroupPropsFormRowOps.php
CVE-2026-39330 8.8 HIGH ChurchCRM has a Blind SQL injection in PropertyAssign.php
CVE-2026-39329 8.8 HIGH ChurchCRM has a Blind SQL injection in EventNames.php
CVE-2026-39319 8.8 HIGH ChurchCRM has a Second Order SQLI via FundRaiserEditor.php
CVE-2026-39333 8.7 HIGH ChurchCRM has Reflected XSS in DateStart/DateEnd parameters in FindFundRaiser.php
CVE-2026-39332 8.7 HIGH ChurchCRM has Reflected Cross-Site Scripting (XSS) in GeoPage.php
CVE-2026-35576 8.7 HIGH ChurchCRM has Stored Cross-Site Scripting (XSS) in Person Properties via PrintView.php
CVE-2026-39331 8.1 HIGH ChurchCRM has an API Authorization Bypass Allows Authenticated User to Deactivate, Modify,
CVE-2026-39340 8.1 HIGH ChurchCRM has a SQL Injection in PropertyTypeEditor.php via Incorrect Sanitizer Substituti
CVE-2026-39341 8.1 HIGH SQL injection in ChurchCRM.0
CVE-2026-35575 8.0 HIGH ChurchCRM has Stored XSS in Group Name
CVE-2026-35534 7.6 HIGH ChurchCRM has Stored XSS in PersonView.php via Facebook Field Attribute Injection
CVE-2026-35574 7.3 HIGH ChurchCRM has a Stored XSS in Person Profile - Add a Note
CVE-2026-39325 7.2 HIGH ChurchCRM has a Blind SQL injection in SettingsUser.php

Showing top 20 of 28 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: CRM
Same vendor: ChurchCRM
Same weakness: CWE-284

V. Comments for CVE-2026-39339

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