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Churchcrm CVE-2026-39335

| EUVDEUVD-2026-19812 MEDIUM
Cross-site Scripting (XSS) (CWE-79)
2026-04-07 GitHub_M
6.1
CVSS 3.1 · GitHub Advisory
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Severity by source

GitHub Advisory PRIMARY
6.1 MEDIUM
AV:N/AC:L/PR:H/UI:R/S:U/C:H/I:H/A:N

Primary rating from GitHub Advisory · only source for this CVE.

CVSS VectorGitHub Advisory

Attack Vector
Network
Attack Complexity
Low
Privileges Required
High
User Interaction
Required
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
None

Lifecycle Timeline

4
Patch available
Apr 16, 2026 - 05:29 EUVD
7.1.1
EUVD ID Assigned
Apr 07, 2026 - 18:00 euvd
EUVD-2026-19812
Analysis Generated
Apr 07, 2026 - 18:00 vuln.today
CVE Published
Apr 07, 2026 - 17:23 nvd
MEDIUM 6.1

DescriptionGitHub Advisory

ChurchCRM is an open-source church management system. Prior to 7.1.1, there is Stored XSS in group remove control and family editor state/country. This is primarily an admin-to-admin stored XSS path when writable entity fields are abused. This vulnerability is fixed in 7.1.1.

AnalysisAI

Stored XSS in ChurchCRM prior to 7.1.1 allows authenticated administrators to inject malicious scripts via group remove controls and family editor state/country fields. The vulnerability requires high-privilege account access and user interaction to trigger, making it an admin-to-admin attack surface rather than a direct threat to end-users. ChurchCRM 7.1.1 and later contain the fix.

Technical ContextAI

ChurchCRM is an open-source church management system built on web technologies. The vulnerability stems from improper input validation and output encoding in HTML contexts, specifically in two administrative UI components: the group remove control and family editor form fields for state/country. CWE-79 (Improper Neutralization of Input During Web Page Generation, also known as Cross-site Scripting) indicates that user-supplied data from writable entity fields is rendered back into the page without adequate HTML escaping or Content Security Policy protections. The attack surface is limited to authenticated administrator accounts with write permissions to these specific entity attributes, reducing exposure compared to unauthenticated XSS vulnerabilities.

RemediationAI

Upgrade ChurchCRM to version 7.1.1 or later to apply the vendor-released patch. Organizations unable to upgrade immediately should restrict administrative access to users with a demonstrated need for entity editing functionality, and consider implementing network-level controls to limit exposure of the ChurchCRM administrative interface. Monitor audit logs for unusual administrative activity, particularly modifications to group and family entity fields. See https://github.com/ChurchCRM/CRM/security/advisories/GHSA-44j4-jjw2-wcr6 for additional mitigation guidance from the vendor.

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CVE-2026-24854 HIGH POC
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Authenticated SQL injection in ChurchCRM's PaddleNumEditor.php endpoint prior to version 6.7.2 allows any logged-in user

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CVE-2026-39335 vulnerability details – vuln.today

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