Online Scheduling and Appointment Booking System <= 27.5 - Unauthenticated SQL Injection

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2026-14516
StatePUBLISHED
AssignerWordfence
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-07-28 09:16:41 UTC
Updated2026-07-28 16:17:29 UTC
DescriptionThe Online Scheduling and Appointment Booking System – Bookly plugin for WordPress is vulnerable to time-based SQL Injection via the 'staff_ids' parameter in all versions up to, and including, 27.5 due to insufficient escaping on the user supplied parameter and lack of sufficient preparation on the existing SQL query. This makes it possible for unauthenticated attackers to append additional SQL queries into already existing queries that can be used to extract sensitive information from the database. Exploitation requires a two-request chain: an attacker first calls the unauthenticated bookly_get_form_id action to seed a booking session carrying malicious staff_ids values, then triggers bookly_render_time to cause the tainted array to reach the vulnerable query; CSRF/nonce validation is absent on both endpoints, meaning this chain can be initiated cross-site.

Risk And Classification

Primary CVSS: v3.1 7.5 HIGH from [email protected]

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

EPSS: 0.002900000 probability, percentile 0.212240000 (date 2026-07-29)

Problem Types: CWE-89 | CWE-89 CWE-89 Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection')

VersionSourceTypeScoreSeverityVector
3.1[email protected]Secondary7.5HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
3.1CNADECLARED7.5HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

CVSS v3.1 Breakdown

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
None
Availability
None

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Ladela Online Scheduling And Appointment Booking System Bookly affected 27.5 semver Not specified

References

ReferenceSourceLinkTags
plugins.trac.wordpress.org/browser/bookly-responsive-appointment-booking-tool/tags/27.5/... [email protected] plugins.trac.wordpress.org
plugins.trac.wordpress.org/browser/bookly-responsive-appointment-booking-tool/tags/27.5/... [email protected] plugins.trac.wordpress.org
plugins.trac.wordpress.org/browser/bookly-responsive-appointment-booking-tool/tags/27.5/... [email protected] plugins.trac.wordpress.org
plugins.trac.wordpress.org/browser/bookly-responsive-appointment-booking-tool/tags/27.5/... [email protected] plugins.trac.wordpress.org
www.wordfence.com/threat-intel/vulnerabilities/id/5c55abc7-b09d-4fea-bc2f-b903d... [email protected] www.wordfence.com
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Vendor Comments And Credit

Discovery Credit

CNA: Nguyen Ngoc Duc (duc193) (en)

Additional Advisory Data

SourceTimeEvent
CNA2026-07-02T19:41:18.000ZVendor Notified
CNA2026-07-27T20:16:18.000ZDisclosed

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