CVE-2026-2519
The Online Scheduling and Appointment Booking System – Bookly plugin for WordPress is vulnerable to price manipulation via the 'tips' parameter in all versions up to, and including, 27.0.
Does this matter?
Lower severity and a low EPSS score (0.45%). Track it; it rarely justifies an emergency change on its own.
Description
The Online Scheduling and Appointment Booking System – Bookly plugin for WordPress is vulnerable to price manipulation via the 'tips' parameter in all versions up to, and including, 27.0. This is due to the plugin trusting a user-supplied input without server-side validation against the configured price. This makes it possible for unauthenticated attackers to submit a negative number to the 'tips' parameter, causing the total price to be reduced to zero.
- CVSS 3.1
- 5.3 MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
- EPSS
- 0.45% probability · 38th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-472
- Source
- security@wordfence.com
References
- https://plugins.trac.wordpress.org/browser/bookly-responsive-appointment-booking-tool/trunk/frontend/modules/booking/Ajax.php#L709
- https://plugins.trac.wordpress.org/browser/bookly-responsive-appointment-booking-tool/trunk/lib/CartInfo.php#L450
- https://plugins.trac.wordpress.org/browser/bookly-responsive-appointment-booking-tool/trunk/lib/UserBookingData.php#L355
- https://plugins.trac.wordpress.org/changeset/3480956/
- https://www.booking-wp-plugin.com/change-log/
- https://www.wordfence.com/threat-intel/vulnerabilities/id/ead87d8b-2659-4e8b-a0b9-138b1db89e36?source=cve
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.