What is CVE-2026-39344?

CVE-2026-39344 is a high-severity vulnerability in Churchcrm Crm, classified under Improper Neutralization of Script-Related HTML Tags in a Web Page (Basic XSS). CVSS score: 8.1/10. Published 2026-04-07.

How severe is CVE-2026-39344?

High severity. CVSS v3 base score is 8.1 out of 10.

XSS in Churchcrm Crm

CVE-2026-39344

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 receiv…

EPSS: 0.000 (13.0th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 8.1 (High). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N.

Affected products

Churchcrm Crm — versions < 7.1.0

Weakness classification (CWE)

CWE-80 — Improper Neutralization of Script-Related HTML Tags in a Web Page (Basic XSS)
CWE-79 — Cross-site Scripting

References

https://github.com/ChurchCRM/CRM/security/advisories/GHSA-rx8c-j7x8-w3hj (x_refsource_CONFIRM)

Frequently asked questions

What is CVE-2026-39344?: CVE-2026-39344 is a high-severity vulnerability in Churchcrm Crm, classified under Improper Neutralization of Script-Related HTML Tags in a Web Page (Basic XSS). CVSS score: 8.1/10. Published 2026-04-07.
How severe is CVE-2026-39344?: High severity. CVSS v3 base score is 8.1 out of 10.