Quick answers
- Is CVE-2026-39344 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-39344 being exploited in the wild.
- How severe is CVE-2026-39344?
- High severity, with a CVSS score of 8.1, published 7 April 2026.
- Which products and versions are affected?
- ChurchCRM CRM < 7.1.0.
- Is there a fix for CVE-2026-39344?
- A patch was published on 2026-04-07: Fix released in version 7.1.0 Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
- How is CVE-2026-39344 attacked?
- It is attacked over the network, in a network appliance.
- Am I affected by CVE-2026-39344?
- Check whether you run ChurchCRM. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.
Technical details
A reflected cross-site scripting (XSS) vulnerability exists in ChurchCRM's login component (CRM/src/session/index.php and begin-session.php). The application fails to sanitize or encode the 'username' URL parameter before echoing it into the 'value' attribute of the login form's input element. An unauthenticated remote attacker can exploit this by crafting a malicious URL and inducing a user to visit it. Successful exploitation allows for the execution of arbitrary JavaScript in the context of the victim's browser session, which can be used to exfiltrate session cookies or perform credential harvesting via DOM manipulation. The issue is resolved in version 7.1.0.
Affected products
- ChurchCRM CRM < 7.1.0
Timeline
- 2026-04-05: advisory: GitHub Security Advisory published
- 2026-04-07: disclosed: CVE published to NVD
- 2026-04-07: patched: Fix released in version 7.1.0