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High · 7.2 Public exploit CVE-2026-5513 EUVD-2026-36651GHSA-pfrr-cpcq-w8m8

Online Scheduling and Appointment Booking System – Bookly <= 27.2 - Unauthenticated Stored Cross-Site Scripting via 'bookly-customer-full-name' Cookie

Published Jun 13, 2026 · Updated Jun 15, 2026 · Assigned by Wordfence

Vendor: ladela Product: Online Scheduling and Appointment Booking System – Bookly Category: Web / CMS

Description

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).

Affected products

VendorProductAffectedFixed
ladela Online Scheduling and Appointment Booking System – Bookly ≤ 27.2 —

Public exploits

Exploit or proof-of-concept code for this vulnerability is publicly available, which lowers the bar for attackers. Treat it as a reason to patch sooner.

Third-party code, not reviewed by us. Public PoCs are sometimes fake or contain malware. Read the code first and run it only in an isolated lab, against systems you are authorised to test.

GitHub 2 repositories

Sources: PoC-in-GitHub, Metasploit Framework, Exploit-DB — updated daily. Only links are listed; no exploit code is hosted here.

References