What is CVE-2026-35574?

CVE-2026-35574 is a high-severity vulnerability in Churchcrm, classified under Cross-site Scripting. CVSS score: 7.3/10. Published 2026-04-07.

How severe is CVE-2026-35574?

High severity. CVSS v3 base score is 7.3 out of 10.

XSS in Churchcrm

CVE-2026-35574

ChurchCRM is an open-source church management system. Prior to 6.5.3, a stored Cross-Site Scripting (XSS) vulnerability in ChurchCRM's Note Editor allows authenticated users with note-adding permissions to execute arbitrary JavaScript code in the context of other users' browsers, including administrators. This can lead to session hijacking, privilege escalation, and unauthorized access to sensitive church member data. This vulnerability is fixed in 6.5.3.

Vulnerability class: XSS (Cross-Site Scripting)

EPSS: 0.003 (23.1th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.3 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:N.

Affected products

Churchcrm
Churchcrm Crm — versions < 6.5.3

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

security-advisories@github.com (x_refsource_CONFIRM, Exploit, Vendor Advisory)

Frequently asked questions

What is CVE-2026-35574?: CVE-2026-35574 is a high-severity vulnerability in Churchcrm, classified under Cross-site Scripting. CVSS score: 7.3/10. Published 2026-04-07.
How severe is CVE-2026-35574?: High severity. CVSS v3 base score is 7.3 out of 10.