ChurchCRM: Stored XSS in UserEditor.php via Login Name Field

Description

ChurchCRM is an open-source church management system. In versions prior to 7.2.0, the User Editor (UserEditor.php) renders stored usernames directly into an HTML input value attribute without applying htmlspecialchars(). An administrator can save a username containing HTML attribute-breaking characters and event handlers, which execute in the browser of any administrator who subsequently views that user's editor page, resulting in stored XSS. This issue has been fixed in version 7.2.0.

Scores

EPSS (exploitation in 30 days)

0.20% · top 90% of all CVEs (5 Nov 2026)

CISA SSVC

Exploitation: none · Automatable: no · Technical impact: partial

The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 4.8.

Weakness

• CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') (opens in a new tab)All about CWE-79 and its CVEs
• CWE-116: Improper Encoding or Escaping of Output (opens in a new tab)All about CWE-116 and its CVEs

Affected products

• ChurchCRM · CRM

  • affected < 7.2.0

References (1)

• https://github.com/ChurchCRM/CRM/security/advisories/GHSA-7h46-9f64-p49q (opens in a new tab)x_refsource_CONFIRM

Sources

The same CVE in the primary databases and aggregators, to check against.

• CVE.org record (opens in a new tab)
• CVE List JSON (GitHub) (opens in a new tab)
• NVD (opens in a new tab)
• FIRST EPSS (opens in a new tab)
• OSV.dev (opens in a new tab)
• GitHub Advisories (opens in a new tab)
• CIRCL Vulnerability-Lookup (opens in a new tab)

Badge for a README or a ticket

[![CVE-2026-40593](https://trackcve.app/badge/CVE-2026-40593.svg)](https://trackcve.app/cve/CVE-2026-40593)

Record last updated 20 Apr 2026, 14:56 UTC.