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

> Unauthenticated attackers can overwrite customer contact details in the Booktics WordPress plugin by exploiting a missing authorization check in the REST API.

- **Severity:** Medium 5.3 (`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 11 Sep 2026
- **Updated:** 11 Sep 2026
- **Also known as:** GHSA-gf52-5www-f3x3

## What is CVE-2026-11446?

CVE-2026-11446 is a medium-severity missing authorization vulnerability in arraytics Booktics – Appointment Booking Calendar for Service Businesses, published on 11 Sep 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official 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.

Weakness: CWE-862 (Missing Authorization)

## Which versions are affected by CVE-2026-11446?


## How do I fix CVE-2026-11446?

No fix has been published for CVE-2026-11446 yet. Limit exposure of the affected software until one is available.

## Is CVE-2026-11446 being exploited?

There is no known exploitation of CVE-2026-11446 in the wild and no public exploit code.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-11446 and fix it if it is affected.

What it is: CVE-2026-11446 is a medium-severity missing authorization vulnerability in arraytics Booktics – Appointment Booking Calendar for Service Businesses, published on 11 Sep 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2026-11446 in the wild and no public exploit code.

Affected product: arraytics Booktics – Appointment Booking Calendar for Service Businesses. No package-level version data is available, so check the vendor advisory linked from the reference page.

Task:
1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.
2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.
3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.
4. Run the tests and summarise what changed and why.
5. If nothing in the project is affected, say so and change nothing.

Reference: https://insights.sbomify.com/CVE-2026-11446/ (Markdown: https://insights.sbomify.com/CVE-2026-11446/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-11446
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-11446
- OSV: https://osv.dev/vulnerability/CVE-2026-11446

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From sbomify Insights: https://insights.sbomify.com/CVE-2026-11446/
Summaries are generated and may contain mistakes; the official description above is the record.