CVE-2026-52838
LOW
INFO
Priority: 0.01
BB Relevance:
30/100
Published: 2026-07-14
Modified: 2026-10-24
First seen: 2026-10-29
Status: active
Attack Surface
Network
Scope Change
CVSS Vector Breakdown
AV:
Network
AC:
High
PR:
High
UI:
Required
S:
Changed
C:
None
I:
Low
A:
None
Description
Easy!Appointments is a self hosted appointment scheduler. Versions prior to 1.6.0 allow administrators to define a custom "booking disabled" message through the booking settings page. That value is stored in the `disable_booking_message` setting via a rich-text editor and later passed directly to the public `booking_message` view without escaping or sanitization. An authenticated administrator can store HTML or JavaScript in this field, enable disabled-booking mode, and trigger stored XSS in every unauthenticated visitor who opens the public booking page. Version 1.6.0 fixes the issue.