WordPress plugin
Appointment Booking Calendar security & vulnerabilities
No known unpatched vulnerabilities in the latest version
All 17 known vulnerabilities are fixed in the latest release. If you run an older version, update to null or newer.
- Critical3
- High2
- Medium12
- Low0
All Appointment Booking Calendar vulnerabilities
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Appointment Booking Calendar: common questions
Does Appointment Booking Calendar have known vulnerabilities?
Yes. VulnCrest Radar lists 17 known vulnerabilities in Appointment Booking Calendar: 3 critical, 2 high, 12 medium. None are known to affect version null.
How do I check which version of Appointment Booking Calendar I run?
In wp-admin open Plugins → Installed Plugins; the version is shown under the name. Without admin access, our passive Check my site tool can often read it from public files.
What is the most recent Appointment Booking Calendar vulnerability?
CVE-2026-111727, published Oct 27, 2026: Appointment Booking Calendar <= 1.4.05 - Authenticated (Subscriber+) Stored Cross-Site Scripting via 'vs_text_submitbtn' Parameter. Severity: Medium (CVSS 6.4).
Is any Appointment Booking Calendar vulnerability listed in CISA KEV?
No. None of the known Appointment Booking Calendar vulnerabilities is currently listed in the CISA KEV catalog.