CVE-2025-25173

HIGH 7.1

WordPress FastBook plugin <= 1.1 - Cross Site Scripting (XSS) Vulnerability

CVSS Score

7.1

EPSS Score

0.0%

EPSS Percentile

0th

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in FasterThemes FastBook fastbook-responsive-appointment-booking-and-scheduling-system allows Stored XSS.This issue affects FastBook: from n/a through <= 1.1.

CWE	CWE-79
Vendor	fasterthemes
Product	fastbook
Published	Jun 27, 2025
Last Updated	Apr 28, 2026

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CVSS v3 Breakdown

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

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

Required

Scope

Changed

Confidentiality

Low

Integrity

Low

Availability

Low

Affected Versions

FasterThemes / FastBook

0 ≤ 1.1

References

NVD ↗ CVE.org ↗ EPSS Data ↗

patchstack.com: https://patchstack.com/database/Wordpress/Plugin/fastbook-responsive-appointment-booking-and-scheduling-system/vulnerability/wordpress-fastbook-1-1-cross-site-scripting-xss-vulnerability?_s_id=cve

Credits

HLog | Patchstack Bug Bounty Program