What is CVE-2026-39335?

CVE-2026-39335 is a medium-severity vulnerability in Churchcrm, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2026-04-07.

How severe is CVE-2026-39335?

Medium severity. CVSS v3 base score is 6.1 out of 10.

XSS in Churchcrm

CVE-2026-39335

ChurchCRM is an open-source church management system. Prior to 7.1.1, there is Stored XSS in group remove control and family editor state/country. This is primarily an admin-to-admin stored XSS path when writable entity fields are abused. This vulnerability is fixed in 7.1.1.

Vulnerability class: XSS (Cross-Site Scripting)

Published 2026-04-07 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 6.1 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:H/I:H/A:N.

EPSS exploit prediction

EPSS: 0.004 (30.1th percentile), scored 2026-10-05.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 30th percentile — 30.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.003 · newest: 0.004 · change: +0.001

Affected products

Churchcrm
Churchcrm Crm — versions < 7.1.1

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

github.com/ChurchCRM/CRM/security/advisories/GHSA-44j4-jjw2-wcr6 (Exploit, Third Party Advisory)

Frequently asked questions

What is CVE-2026-39335?: CVE-2026-39335 is a medium-severity vulnerability in Churchcrm, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2026-04-07.
How severe is CVE-2026-39335?: Medium severity. CVSS v3 base score is 6.1 out of 10.