Cross Site Scripting Vulnerability in Fluent Booking Plugin by WordPress
CVE-2026-57638

6.5MEDIUM

Key Information:

Vendor

WordPress
Status
Fluent Booking
Vendor
CVE Published:
26 June 2026

What is CVE-2026-57638?

A Cross Site Scripting (XSS) vulnerability exists in Fluent Booking versions 2.1.0 and earlier. This flaw allows attackers to inject malicious scripts into web pages viewed by other users, potentially compromising user data and web application integrity. It is essential for users of the Fluent Booking plugin to implement the latest security measures and updates to mitigate this risk.

Affected Version(s)

Fluent Booking <= 2.1.0

References

https://patchstack.com/database/wordpress/plugin/fluent-b...
vdb-entry

CVSS V3.1

Score:
6.5
Severity:
MEDIUM
Confidentiality:
Low
Integrity:
Low
Availability:
Low
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
Required
Scope:
Changed

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

TarcĂ­sio Luchesi(Poystick) | Patchstack Bug Bounty Program
.