CVE-2026-39344

High

Description

ChurchCRM is an open-source church management system. Prior to 7.1.0, there is a Reflected Cross-Site Scripting (XSS) vulnerability on the login page, which is caused by the lack of sanitization or encoding of the username parameter received from the URL. The username parameter value is directly displayed in the login page input element without filter, allowing attackers to insert malicious JavaScript scripts. If successful, script can be executed on the client side, potentially stealing sensitive data such as session cookies or replacing the display to show the attacker's login form. This vulnerability is fixed in 7.1.0.

SeverityHigh
CVSS8.1
Exploit probability—
ProductChurchcrm
PublishedApr 7, 2026
First seenApr 7, 2026

How to fix

Update
  • churchcrm churchcrm7.1.0 or later

Affected products

ProductAffected versionsFixed in
churchcrm churchcrmv < 7.1.07.1.0

Check your version

Choose the product and enter the version you run to see whether it falls in the affected range.

In the Intelligence 360 plan

Attack Surface Management

See the assets tied to your domains, the technologies they run and known vulnerabilities in one list.