# CVE-2026-104766: Privilege escalation in Appointment Booking Plugin – LatePoint | Calendar & Scheduling for WordPress

> Authenticated users with settings edit capability can escalate privileges by modifying default customer role to administrator.

- **Severity:** High 8.8 (`CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H`)
- **Exploited in the wild:** Not known
- **Login needed:** Any signed-in user
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 10 Oct 2026
- **Updated:** 11 Oct 2026
- **Also known as:** GHSA-h977-fppf-xgg7

## What is CVE-2026-104766?

CVE-2026-104766 is a high-severity vulnerability in Appointment Booking Plugin – LatePoint | Calendar & Scheduling for WordPress, published on 10 Oct 2026. Any signed-in user can exploit it over the network, with no action from the victim.

### Official description

The Appointment Booking Plugin – LatePoint | Calendar & Scheduling for WordPress plugin for WordPress is vulnerable to Privilege Escalation in all versions up to, and including, 5.7.3. This is due to the `OsSettingsController::update()` handler iterating over attacker-supplied `settings` parameters without an allowlist of permitted setting names or values, and `OsSettingsHelper::prepare_value()` performing no role allowlist validation before persisting the `default_wp_role_for_customer` setting — a restriction that exists only in the UI dropdown and is never enforced server-side. This makes it possible for authenticated attackers holding a LatePoint role with the `settings__edit` capability (such as an agent or custom role) to overwrite the default WordPress role for new customers with `administrator`, causing any subsequently self-registered LatePoint customer account to be created with full WordPress administrator privileges. Exploitation requires that a WordPress administrator has granted the `settings__edit` capability to a LatePoint agent or custom role, and that a new customer account is registered through LatePoint after the malicious setting change is persisted.

Weakness: CWE-269 (Improper Privilege Management)

## Which versions are affected by CVE-2026-104766?


## How do I fix CVE-2026-104766?

No fix has been published for CVE-2026-104766 yet. Limit exposure of the affected software until one is available.

## Is CVE-2026-104766 being exploited?

There is no known exploitation of CVE-2026-104766 in the wild and no public exploit code.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-104766 and fix it if it is affected.

What it is: CVE-2026-104766 is a high-severity vulnerability in Appointment Booking Plugin – LatePoint | Calendar & Scheduling for WordPress, published on 10 Oct 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2026-104766 in the wild and no public exploit code.

Affected product: Appointment Booking Plugin – LatePoint | Calendar & Scheduling for WordPress. 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-2026-104766/ (Markdown: https://insights.sbomify.com/CVE-2026-104766/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-104766
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-104766
- OSV: https://osv.dev/vulnerability/CVE-2026-104766

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From sbomify Insights: https://insights.sbomify.com/CVE-2026-104766/
Summaries are generated and may contain mistakes; the official description above is the record.