Stored Cross-Site Scripting Vulnerability in Fluent Booking Plugin for WordPress
CVE-2026-2231

7.2HIGH

Key Information:

Vendor

WordPress
Status
Fluent Booking – The Ultimate Appointments Scheduling, Events Booking, Events Calendar Solution
Vendor
CVE Published:
26 March 2026

What is CVE-2026-2231?

The Fluent Booking plugin for WordPress exhibits a Stored Cross-Site Scripting vulnerability due to inadequate input sanitization and output escaping across multiple parameters. This flaw impacts all versions up to and including 2.0.01, allowing unauthenticated attackers to insert malicious web scripts. When users visit the compromised pages, these scripts can be executed, potentially leading to unauthorized actions, leaked information, or compromised user sessions.

Affected Version(s)

Fluent Booking – The Ultimate Appointments Scheduling, Events Booking, Events Calendar Solution 0 <= 2.0.01

References

https://www.wordfence.com/threat-intel/vulnerabilities/id...
https://plugins.trac.wordpress.org/browser/fluent-booking...
https://plugins.trac.wordpress.org/browser/fluent-booking...

CVSS V3.1

Score:
7.2
Severity:
HIGH
Confidentiality:
Low
Integrity:
Low
Availability:
Low
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Changed

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

Supakiad S.
.