CVE-2026-2519 Details
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.
A vulnerability exists in the Online Scheduling and Appointment Booking System – Bookly plugin for WordPress, in all versions through 27.0. The issue arises from the plugin's lack of server-side validation for user-supplied input in the 'tips' parameter, allowing unauthenticated attackers to submit negative values. This manipulation can reduce the total price to zero.
Users can update to version 27.1 or a newer patched version to address this vulnerability.
Metrics
CVSS 4.0 Severity and Vector Strings:
VolerionCVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
Volerion
Assessed Apr 9, 2026CISA-ADP
Assessed Apr 13, 2026References to Advisories, Solutions, and Tools
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Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-472 | External Control of Assumed-Immutable Web Parameter | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| Bookly | <= 27.0 |
CPE
Remediation
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Change History
3 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Jun 17, 2026 | CVE Modified | [email protected] |
| Jun 17, 2026 | CVE Modified | CISA-ADP |
| Apr 9, 2026 | New CVE Received | [email protected] |