CVE-2025-26593 MEDIUM

CVE-2025-26593: WordPress FastBook plugin <= 1.1 - Cross Site Request Forgery (CSRF) Vulnerability

Vendor Fasterthemes
Product FastBook
Weakness CWE-352 · CSRF
Published June 6, 2025
Last update April 28, 2026
View on NVD All CVEs

CVSS base score

4.3/10
Attack vector Network
Attack complexity Low
Privileges required None
User interaction Required
Confidentiality None
Integrity None

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L

What the vulnerability does

01Description

Cross-Site Request Forgery (CSRF) vulnerability in FasterThemes FastBook fastbook-responsive-appointment-booking-and-scheduling-system allows Cross Site Request Forgery.This issue affects FastBook: from n/a through <= 1.1.

Explanation of Vulnerability in Simple Terms

02Summary

FastBook versions 1.1 and earlier contain a cross-site request forgery (CSRF) vulnerability. An attacker can craft a malicious webpage that, when visited by a logged-in FastBook user, performs unwanted actions on their behalf without their knowledge. The vulnerability requires user interaction—the victim must visit the attacker's page while authenticated. Impact is limited to availability disruption.

What an attacker can do

03Attacker Capabilities

Perform unwanted actions on a FastBook user's account by tricking them into visiting a malicious webpage.

Potential impact on your site

04Site Impact

Users' FastBook accounts can be manipulated without their consent if they visit untrusted sites while logged in.

Conditions required to exploit

05Prerequisites

Victim must be logged into FastBook and visit an attacker-controlled webpage.

Key dates

06Disclosure timeline

June 6, 2025 CVE published
April 28, 2026 Record updated