Online Scheduling and Appointment Booking System <= 27.5 - Unauthenticated SQL Injection
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- SQL injection
- Confidentiality · integrity · availability
- High · None · None
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-89.
Summary
The 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.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- Yes
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2026-14516
- 2026-10-03 Alias added: GHSA-fw4m-pvcf-9q9c
References
Other 5
- https://www.wordfence.com/threat-intel/vulnerabilities/id/5c55abc7-b09d-4fea-bc2f-b903d3da119f?source=cve
- https://plugins.trac.wordpress.org/browser/bookly-responsive-appointment-booking-tool/tags/27.5/lib/slots/Finder.php#L494
- https://plugins.trac.wordpress.org/browser/bookly-responsive-appointment-booking-tool/tags/27.5/lib/ChainItem.php#L65
- https://plugins.trac.wordpress.org/browser/bookly-responsive-appointment-booking-tool/tags/27.5/lib/ChainItem.php#L172
- https://plugins.trac.wordpress.org/browser/bookly-responsive-appointment-booking-tool/tags/27.5/frontend/modules/booking/Ajax.php#L15
More ladela vulnerabilities
- TI-2026-62969 Authorization bypass in ladela Online Scheduling and Appointment Booking System – Bookly CVSS 3.1CRITICAL 9.1
- TI-2026-60359 Authorization bypass in ladela Online Scheduling and Appointment Booking System – Bookly CVSS 3.1HIGH 7.5
- TI-2026-11363 Cross-site scripting in ladela Online Scheduling and Appointment Booking System – Bookly CVSS 3.1HIGH 7.2
- TI-2026-04830 Cross-site scripting in ladela Online Scheduling and Appointment Booking System – Bookly CVSS 3.1HIGH 7.2
- TI-2026-70141 PHP object injection in Bookly WordPress scheduling plugin CVSS 3.1HIGH 7.2
- TI-2026-70266 Bookly WordPress plugin lets subscribers escalate privileges CVSS 3.1MEDIUM 6.8
Sources
- CVE-2026-14516 · CVE Program
- CVE-2026-14516 · NVD
- FIRST EPSS
- GHSA-fw4m-pvcf-9q9c · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences