{"document":{"category":"csaf_vex","csaf_version":"2.0","title":"CVE-2026-5513: Online Scheduling and Appointment Booking System – Bookly <= 27.2 - Unauthenticated Stored Cross-Site Scripting via 'bookly-customer-full-name' Cookie","publisher":{"category":"vendor","name":"HarborGuard Database","namespace":"https://database.harborguard.co"},"tracking":{"id":"CVE-2026-5513","status":"final","version":"1","initial_release_date":"2026-06-13T11:25:24.786Z","current_release_date":"2026-06-13T11:25:24.786Z","revision_history":[{"date":"2026-06-13T11:25:24.786Z","number":"1","summary":"Initial machine-readable export from HarborGuard."}]},"distribution":{"tlp":{"label":"WHITE"},"text":"Public CVE data; freely redistributable."},"notes":[{"category":"description","text":"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).","title":"CVE description"}],"references":[{"category":"self","summary":"CVE-2026-5513 on HarborGuard Database","url":"https://database.harborguard.co/cve/CVE-2026-5513"},{"category":"external","summary":"CVE Record","url":"https://www.cve.org/CVERecord?id=CVE-2026-5513"},{"category":"external","summary":"wordfence.com","url":"https://www.wordfence.com/threat-intel/vulnerabilities/id/b8ab6dfa-3764-470f-aa49-1964f42d93de?source=cve"},{"category":"external","summary":"plugins.trac.wordpress.org","url":"https://plugins.trac.wordpress.org/changeset/3504922/bookly-responsive-appointment-booking-tool"}]},"product_tree":{"branches":[{"category":"vendor","name":"ladela","branches":[{"category":"product_name","name":"Online Scheduling and Appointment Booking System – Bookly","branches":[{"category":"product_version_range","name":"<=27.2","product":{"name":"ladela Online Scheduling and Appointment Booking System – Bookly <=27.2","product_id":"CSAFPID-1","product_identification_helper":{"cpe":"cpe:2.3:a:ladela:online_scheduling_and_appointment_booking_system_–_bookly:*:*:*:*:*:*:*:*"}}}]}]}]},"vulnerabilities":[{"cve":"CVE-2026-5513","title":"Online Scheduling and Appointment Booking System – Bookly <= 27.2 - Unauthenticated Stored Cross-Site Scripting via 'bookly-customer-full-name' Cookie","notes":[{"category":"description","text":"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).","title":"CVE description"}],"product_status":{"known_affected":["CSAFPID-1"]},"scores":[{"cvss_v3":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N","baseScore":7.2,"baseSeverity":"HIGH"},"products":["CSAFPID-1"]}],"remediations":[{"category":"none_available","details":"No fixed version is published yet. Monitor the upstream advisory.","product_ids":["CSAFPID-1"]}]}]}