{"id":"CVE-2026-2520","title":"The Online Scheduling and Appointment Booking System – Bookly plugin for WordPress is vulnerable to unauthorized modification of data due to a missing capability check on the 'updateAddon' function in all versions up to, and including, 2…","summary":"The Online Scheduling and Appointment Booking System – Bookly plugin for WordPress is vulnerable to unauthorized modification of data due to a missing capability check on the 'updateAddon' function in all versions up to, and including, 2…","severity":"medium","cvss":5.4,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L","cwe":["CWE-862"],"vendor":"ladela","product":"Online Scheduling and Appointment Booking System – Bookly","affected":["online_scheduling_and_appointment_booking_system_bookly <= 27.2"],"published":"2026-09-08","updated":"2026-09-08","sourceUpdated":"2026-09-08T13:17:18.997","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-2520","references":[{"url":"https://plugins.trac.wordpress.org/browser/bookly-responsive-appointment-booking-tool/trunk/lib/PluginsUpdater.php#L10","label":"security@wordfence.com"},{"url":"https://plugins.trac.wordpress.org/browser/bookly-responsive-appointment-booking-tool/trunk/lib/PluginsUpdater.php#L105","label":"security@wordfence.com"},{"url":"https://plugins.trac.wordpress.org/changeset/3504922/","label":"security@wordfence.com"},{"url":"https://www.wordfence.com/threat-intel/vulnerabilities/id/b7edc69b-363d-49df-b82b-a9ad4fe9224a?source=cve","label":"security@wordfence.com"}],"tags":["nvd","cve.org"],"ssvc":{"exploitation":"none","automatable":"no","technicalImpact":"partial","timestamp":"2026-09-08T12:01:06.633610Z"},"ingestedAt":"2026-09-08T15:33:26.983Z","epss":0.00219,"epssPercentile":0.12584,"slug":"CVE-2026-2520","body":"## Overview\n\nThe Online Scheduling and Appointment Booking System – Bookly plugin for WordPress is vulnerable to unauthorized modification of data due to a missing capability check on the 'updateAddon' function in all versions up to, and including, 27.2. This makes it possible for authenticated attackers, with Subscriber-level access and above, to update any plugin with a main file of 'main.php' to its latest version.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"sunlit","depthScore":30,"depthScoreParts":{"impact":29.7,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}