Improper Neutralization of Script-Related HTML Tags in a Web Page (Basic XSS) in ChurchCRM - #VU138413
Published: July 20, 2026
Vulnerability identifier: #VU138413
CSH Severity: Low
CVSS v4: 4.8 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:A/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N]
CVE-ID: N/A
CWE-ID: CWE-80
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote user to execute arbitrary JavaScript in a victim's browser session.
The vulnerability exists due to improper neutralization of script-related html tags in a web page in the family record view phone custom-field link rendering in people/views/family-view.php when rendering a phone-type custom field value into an unescaped tel: href attribute. A remote user can store a specially crafted phone custom-field value to execute arbitrary JavaScript in a victim's browser session.
User interaction is required when a victim views the affected family record, and exploitation requires family-edit rights and a phone-type family custom field.
Affected software
ChurchCRM
Remediation
Install security update from vendor's website.
ChurchCRM - update to 7.4.3