Appointment Booking Plugin <= 5.7.2 - Insecure Direct Object Reference to Authenticated (Subscriber+) Unauthorized Booking Creation and Sensitive Information Disclosure via 'params[presets][order_item_id]' Parameter

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2026-91050
StatePUBLISHED
AssignerWordfence
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-10-10 06:16:43 UTC
Updated2026-10-13 13:29:12 UTC
DescriptionThe Appointment Booking Plugin – LatePoint | Calendar & Scheduling for WordPress plugin for WordPress is vulnerable to Insecure Direct Object Reference / Missing Authorization in versions up to, and including, 5.7.2. This is due to the publicly reachable steps__start and steps__load_step routes accepting a params[presets][order_item_id] value that is copied verbatim into the booking object without verifying that the referenced order item belongs to the current customer, is a bundle item, is paid, or has remaining capacity — the is_bundle_scheduling() bundle discriminator is a mere !empty(order_item_id) truthiness check, and the code flow explicitly removes the customer and payment steps when this is truthy (the source even carries a TODO acknowledging the missing validation). This makes it possible for unauthenticated attackers to create approved appointments against other customers' order items and to read those customers' names, email addresses, and order codes returned in the booking confirmation.

Risk And Classification

Primary CVSS: v3.1 4.3 MEDIUM from [email protected]

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

EPSS: 0.002110000 probability, percentile 0.104580000 (date 2026-10-12)

Problem Types: CWE-639 | CWE-639 CWE-639 Authorization Bypass Through User-Controlled Key

VersionSourceTypeScoreSeverityVector
3.1[email protected]Secondary4.3MEDIUMCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N
3.1CNADECLARED4.3MEDIUMCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N

CVSS v3.1 Breakdown

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

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

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Latepoint Appointment Booking Plugin LatePoint Calendar Scheduling For WordPress affected 5.7.2 semver Not specified

References

ReferenceSourceLinkTags
www.wordfence.com/threat-intel/vulnerabilities/id/136f8e94-a09a-48c4-bea9-e8b21... [email protected] www.wordfence.com
plugins.trac.wordpress.org/browser/latepoint/tags/5.6.11/lib/helpers/steps_helper.php [email protected] plugins.trac.wordpress.org
plugins.trac.wordpress.org/browser/latepoint/tags/5.6.11/lib/models/booking_model.php [email protected] plugins.trac.wordpress.org
plugins.trac.wordpress.org/browser/latepoint/tags/5.6.11/lib/helpers/steps_helper.php [email protected] plugins.trac.wordpress.org
plugins.trac.wordpress.org/browser/latepoint/tags/5.6.11/lib/controllers/steps_controlle... [email protected] plugins.trac.wordpress.org
plugins.trac.wordpress.org/browser/latepoint/tags/5.6.11/lib/helpers/steps_helper.php [email protected] plugins.trac.wordpress.org
plugins.trac.wordpress.org/browser/latepoint/tags/5.6.11/lib/helpers/steps_helper.php [email protected] plugins.trac.wordpress.org
plugins.trac.wordpress.org/browser/latepoint/tags/5.6.11/lib/controllers/steps_controlle... [email protected] plugins.trac.wordpress.org
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: Supakiad S. (m3ez) (en)

Additional Advisory Data

SourceTimeEvent
CNA2026-09-14T17:30:15.000ZVendor Notified
CNA2026-10-09T17:18:27.000ZDisclosed

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