PT-2026-49091 · Ladela · Online Scheduling/Appointment Booking System – Bookly

Naoya Takahashi · Published 2026-06-13 · Updated 2026-06-13 · CVE-2026-5513

NVD

CVSS v3.1

7.2

High

Base vector

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

The Online Scheduling and Appointment Booking System – Bookly plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'bookly-customer-full-name' cookie in versions up to, and including, 27.2 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. Exploitation requires 'Remember personal information in cookies' setting to be enabled (disabled by default).

Fix

XSS

Weakness Enumeration

CWE-79

Related Identifiers

CVE-2026-5513

Affected Products

Online Scheduling/Appointment Booking System – Bookly

References · 3

• https://nvd.nist.gov/vuln/detail/CVE-2026-5513 · Security Note
• https://wordfence.com/threat-intel/vulnerabilities/id/b8ab6dfa-3764-470f-aa49-1964f42d93de?source=cve · Note
• https://plugins.trac.wordpress.org/changeset/3504922/bookly-responsive-appointment-booking-tool · Note