Threat intelligence

Appointment Hour Booking – Booking Calendar <= 1.5.60 - Authenticated (Administrator+) Stored Cross-Site Scripting via 'Min/Max Length' Field Configuration

CVE-2026-1083 · appointment-hour-booking

Important: Seeing this vulnerability listed does not mean your website is affected. Exposure depends on whether you run Appointment Hour Booking at a vulnerable version. How SiteRespond intelligence works

Vulnerability: Appointment Hour Booking – Booking Calendar <= 1.5.60 - Authenticated (Administrator+) Stored Cross-Site Scripting via 'Min/Max Length' Field Configuration
Affected software: appointment-hour-booking(Plugin)
Affected versions: ≤ 1.5.60
Authentication: Authenticated (see advisory title)
Vulnerability type: Cross-site scripting
CVE: CVE-2026-1083
Published: 27 January 2026
CISA KEV: Not listed in CISA KEV at last catalog refresh
Impact: May allow attackers to run scripts in visitors' browsers or hijack admin sessions.
Source: Data imported from Wordfence Intelligence (advisory a5cb1fea-134f-4c81-8f2f-76ee42df7f77). Methodology and redistribution notes

Check whether your installed version is affected

SiteRespond Defence matches your installed Appointment Hour Booking version against this catalog when the Defence plugin is connected to your WordPress site.

Start SiteRespond Defence for WordPress — £29.99/monthScan your website

All Appointment Hour Booking advisoriesBack to catalog