Sensitive data exposure in Bookly scheduling plugin for WordPress
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Information disclosure
- Confidentiality · integrity · availability
- Low · None · None
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-200.
Summary
The Bookly (Online Scheduling and Appointment Booking System) plugin for WordPress through 28.4 exposes stored customer data. Its bookly_render_details endpoint loads a customer record from a phone number or email supplied in the request, without an identity check (CWE-200). An unauthenticated attacker who knows a registered customer's phone or email can read that customer's stored name, email, phone and internal notes when the Details step shows client placeholders.
Written with Claude Haiku 5.5 from the sources below · 2026-10-29
Description from the CNA
The Bookly – Online Scheduling and Appointment Booking System plugin for WordPress is vulnerable to Sensitive Information Exposure in versions up to, and including, 28.4 via the classic booking form's Details step. The endpoint bookly_render_details is registered for both wp_ajax and wp_ajax_nopriv, the module overrides csrfTokenValid() to always return true, and Bookly\Frontend\Components\Booking\InfoText::getCodes() calls UserBookingData::getCustomer() to load the persisted Customer entity keyed solely by the attacker-supplied phone (or email) with no invocation of the plugin's own customerIdentityConfirmed() predicate. When a site owner has placed the supported {client_name}, {client_email}, {client_phone}, or {client_note} placeholders into the Details step's Appearance information text, the matched customer's stored name, email, phone and internal notes are substituted into the returned HTML. This makes it possible for unauthenticated attackers who know only a registered customer's primary phone (or email) to read that customer's stored personal data.
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
The sources list no fixed version for Bookly (Online Scheduling and Appointment Booking System).
Written with Claude Haiku 5.5 from the sources below · 2026-10-29
Timeline
- 2026-10-10 Threatist record created from CVE-2026-103365
- 2026-10-10 Alias added: GHSA-5p6p-rjcr-26xj
- 2026-10-11 CISA SSVC decision points changed
References
Other 8
- https://www.wordfence.com/threat-intel/vulnerabilities/id/df578e6c-cecd-4c80-b11c-3916ec22c7c7?source=cve
- https://plugins.trac.wordpress.org/browser/bookly-responsive-appointment-booking-tool/tags/28.3/frontend/components/booking/InfoText.php#L389
- https://plugins.trac.wordpress.org/browser/bookly-responsive-appointment-booking-tool/tags/28.3/frontend/modules/booking/Ajax.php#L570
- https://plugins.trac.wordpress.org/browser/bookly-responsive-appointment-booking-tool/tags/28.3/lib/UserBookingData.php#L838
- https://plugins.trac.wordpress.org/browser/bookly-responsive-appointment-booking-tool/tags/28.3/frontend/modules/booking/Ajax.php#L791
- https://plugins.trac.wordpress.org/browser/bookly-responsive-appointment-booking-tool/tags/28.3/frontend/modules/booking/Ajax.php#L1515
- https://plugins.trac.wordpress.org/browser/bookly-responsive-appointment-booking-tool/tags/28.3/frontend/modules/booking/Ajax.php#L15
- https://plugins.trac.wordpress.org/changeset?reponame=&new=3730881%40bookly-responsive-appointment-booking-tool%2Ftags%2F28.5&old=3722721%40bookly-responsive-appointment-booking-tool%2Ftags%2F28.4
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-2026-12256 Online Scheduling and Appointment Booking System <= 27.5 - Unauthenticated SQL Injection 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
Sources
- CVE-2026-103365 · CVE Program
- CVE-2026-103365 · NVD
- FIRST EPSS
- GHSA-5p6p-rjcr-26xj · 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