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.

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History

Tue, 07 Apr 2026 20:45:00 +0000

Type Values Removed Values Added
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.
Title Reflected XSS the login page through the 'username' parameter
Weaknesses CWE-79
CWE-80
References
Metrics cvssV3_0

{'score': 8.1, 'vector': 'CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N'}


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cve-icon MITRE

Status: PUBLISHED

Assigner: GitHub_M

Published:

Updated: 2026-04-07T18:04:24.341Z

Reserved: 2026-04-06T20:28:38.394Z

Link: CVE-2026-39344

cve-icon Vulnrichment

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cve-icon NVD

Status : Received

Published: 2026-04-07T18:16:46.587

Modified: 2026-04-07T18:16:46.587

Link: CVE-2026-39344

cve-icon Redhat

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cve-icon OpenCVE Enrichment

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Weaknesses