CVE-2026-40593

MEDIUM
MEDIUM Priority: 0.01 BB Relevance: 45/100
Published: 2026-04-18 Modified: 2026-10-26 First seen: 2026-10-29 Status: active

Attack Surface

Network Low Complexity Scope Change

CVSS Vector Breakdown

AV: Network
AC: Low
PR: High
UI: Required
S: Changed
C: Low
I: Low
A: None

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.

Weakness Classification (2)

Bug Bounty Relevance

45 / 100
✓ Network accessible
✓ Low complexity

CVSS Score

4.8 / 10.0 v3.1
CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N

EPSS — Exploitation Probability

0.20%
Raw Score 0.002000
Percentile 9.8%
Date 2026-10-29

EPSS Trend

2026-10-29
0.00200
2026-10-28
0.00200

Intelligence Sources

nvd ref →