CVE-2026-13424Online Scheduling and Appointment Booking System <= 27.7 - Unauthenticated Stored Cross-Site Scripting via bookly_speed_up_update_addons AJAX action
Updated under an hour ago ()
Does this affect you?
It affects ladela Online Scheduling and Appointment Booking System – Bookly. Add what you run to find out whether that includes you.
No exploitation reported and no EPSS estimate yet.
Do this next
Free account, 1 product
The Online Scheduling and Appointment Booking System – Bookly plugin for WordPress is vulnerable to Stored Cross-Site Scripting via bookly_speed_up_update_addons AJAX action in all versions up to, and including, 27.7 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. The injection point is the bookly_speed_up_update_addons AJAX action, which is registered as wp_ajax_nopriv_* and therefore reachable without authentication; the payload is stored verbatim in the bookly_log.details column when a request is submitted without a valid signature, and executes when an administrator later views the Diagnostics → Logs page.
- CVSS
- 7.2 HIGH (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N
- Weakness (CWE)
- CWE-79
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- Wordfence
- NVD analysis
- Deferred
- Record last updated
- Aug 17, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
ladela Online Scheduling and Appointment Booking System – Bookly ladela:online_scheduling_and_appointment_booking_system_bookly (from the name) | through 27.7 | CNA record |
References
- https://www.wordfence.com/threat-intel/vulnerabilities/id/cfb53e44-7f9d-490f-b938-f428c20219d7?source=cve
- https://plugins.trac.wordpress.org/browser/bookly-responsive-appointment-booking-tool/tags/27.7/backend/modules/diagnostics/resources/js/diagnostics.js#L542
- https://plugins.trac.wordpress.org/browser/bookly-responsive-appointment-booking-tool/tags/27.7/lib/PluginsUpdater.php#L97
- https://plugins.trac.wordpress.org/browser/bookly-responsive-appointment-booking-tool/tags/27.7/lib/PluginsUpdater.php#L13
- https://plugins.trac.wordpress.org/browser/bookly-responsive-appointment-booking-tool/tags/27.7/backend/modules/diagnostics/Ajax.php#L344
- https://plugins.trac.wordpress.org/browser/bookly-responsive-appointment-booking-tool/tags/27.5/backend/modules/diagnostics/resources/js/diagnostics.js#L542
- https://plugins.trac.wordpress.org/browser/bookly-responsive-appointment-booking-tool/tags/27.5/lib/PluginsUpdater.php#L97
- https://plugins.trac.wordpress.org/browser/bookly-responsive-appointment-booking-tool/tags/27.5/lib/PluginsUpdater.php#L13
- https://plugins.trac.wordpress.org/browser/bookly-responsive-appointment-booking-tool/tags/27.5/backend/modules/diagnostics/Ajax.php#L344
- https://plugins.trac.wordpress.org/changeset?reponame=&old=3637918%40bookly-responsive-appointment-booking-tool&new=3637918%40bookly-responsive-appointment-booking-tool
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.