WordPress plugin
FastBook – Responsive Appointment Booking and Scheduling System security & vulnerabilities
Unpatched vulnerability in the latest version
At least one vulnerability affects the latest version and no fix has been released. Deactivate the plugin or restrict access to the affected feature until the vendor ships a patch.
- Critical0
- High0
- Medium3
- Low0
All FastBook – Responsive Appointment Booking and Scheduling System vulnerabilities
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FastBook – Responsive Appointment Booking and Scheduling System: common questions
Does FastBook – Responsive Appointment Booking and Scheduling System have known vulnerabilities?
Yes. VulnCrest Radar lists 3 known vulnerabilities in FastBook – Responsive Appointment Booking and Scheduling System: 3 medium. At least one is not fixed in the latest version.
How do I check which version of FastBook – Responsive Appointment Booking and Scheduling System 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 FastBook – Responsive Appointment Booking and Scheduling System vulnerability?
CVE-2025-25173, published Jun 18, 2025: FastBook <= 1.1 - Reflected Cross-Site Scripting. Severity: Medium (CVSS 6.1).
Is any FastBook – Responsive Appointment Booking and Scheduling System vulnerability listed in CISA KEV?
No. None of the known FastBook – Responsive Appointment Booking and Scheduling System vulnerabilities is currently listed in the CISA KEV catalog.