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CVE-2026-40593

ChurchCRM: Stored XSS in UserEditor.php via Login Name Field

Published: Apr 18, 2026Updated: Apr 20, 2026 Sources: CVE List NVDCWE-79
NVD MITRE
4.8CVSSMEDIUM
EPSS Score
0.2%
Top 90.2%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
No Fix Available

Description

ChurchCRM is an open-source church management system. In versions prior to 7.2.0, the User Editor (UserEditor.php) renders stored usernames directly into an HTML input value attribute without applying htmlspecialchars(). An administrator can save a username containing HTML attribute-breaking characters and event handlers, which execute in the browser of any administrator who subsequently views that user's editor page, resulting in stored XSS. This issue has been fixed in version 7.2.0.

CVSS Vector Breakdown

AV:NAC:LPR:HUI:RS:CC:LI:LA:N
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:HPrivileges Required
High
UI:RUser Interaction
Required
Scope
S:CScope
Changed
Impact
C:LConfidentiality
Low
I:LIntegrity
Low
A:NAvailability
None
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Weaknesses

CWE-79CWE-116

Affected Products

CRMChurchCRM
On-premWeb App
Enterprise Software / itsm-monitoring
churchcrmcommercialEnterprise Softwareaka churchcrm

Attack Graph

Products CVE Techniques Tactics

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Exploitability

No known exploits, KEV entries, or remediation guidance available for this vulnerability yet.

MITRE ATT&CK

2 techniques
Execution
Initial Access
View detailed technique mapping

References

https://github.com/ChurchCRM/CRM/security/advisories/GHSA-7h46-9f64-p49q
github.com

Timeline

Published
Apr 18, 2026
Last Updated
Apr 20, 2026

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