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Vulnerability record · CVE-2026-39344 · published 7 April 2026

CVE-2026-39344: Churchcrm cross-site scripting vulnerability

Churchcrm · Churchcrm

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.

8.1 CVSS 3.0 High EPSS 0.40% · top 68.6% CWE-79 · Cross-site scriptingCWE-80 · CWE-80
8.1CVSS 3.0 base score
0.40%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
2References
24 Jul 2026Last modified by NVD

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.

CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://github.com/ChurchCRM/CRM/security/advisories/GHSA-rx8c-j7x8-w3hj Third Party Advisory
https://github.com/ChurchCRM/CRM/security/advisories/GHSA-rx8c-j7x8-w3hj Third Party Advisory

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2026-39344), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.