CVE-2026-5513

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).

CVSS v3.1

7.2 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N

EPSS

0.44% chance of exploitation in the next 30 days, 37th percentile

Published

2026-06-13

Updated

2026-06-15

Proof-of-concept exploits (2)

• Xaanziu/CVE-2026-55130★ · 2026-06-14
• 87achrafg-stack/CVE-2026-55130★ · 2026-06-17

References

• CVE Record
• NVD entry

Related

• CVE-2026-48907
• CVE-2026-49083
• CVE-2026-6279
• CVE-2026-55108
• CVE-2026-55162
• CVE-2026-55087