# CVE-2026-11866: LatePoint < 5.6.3 - Multiple Privileged Actions via CSRF

> Attackers can perform privileged actions like overwriting configurations or disconnecting payment gateways via CSRF against logged-in administrators.

- **Severity:** Medium 5.4 (`CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:L`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** A user has to click or open something
- **Fix available:** No
- **Published:** 16 Jul 2026
- **Updated:** 16 Jul 2026
- **Also known as:** GHSA-fhhf-9f5f-hv7p

## What is CVE-2026-11866?

CVE-2026-11866 is a medium-severity vulnerability in Unknown Appointment Booking Plugin, published on 16 Jul 2026. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.

### Official description

The Appointment Booking Plugin  WordPress plugin before 5.6.3 does not validate a CSRF nonce on several state-changing actions handled by its central request dispatcher, allowing attackers to perform privileged actions, such as overwriting the booking-form configuration or disconnecting the connected payment gateway, via Cross-Site Request Forgery against a logged-in administrator.

Weakness: CWE-352 (Cross-Site Request Forgery)

## Which versions are affected by CVE-2026-11866?


## How do I fix CVE-2026-11866?

No fix has been published for CVE-2026-11866 yet. Limit exposure of the affected software until one is available.

## Is CVE-2026-11866 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-11866 exists.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-11866 and fix it if it is affected.

What it is: CVE-2026-11866 is a medium-severity vulnerability in Unknown Appointment Booking Plugin, published on 16 Jul 2026. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Exploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-11866 exists.

Affected product: Unknown Appointment Booking Plugin. 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-2026-11866/ (Markdown: https://insights.sbomify.com/CVE-2026-11866/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-11866
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-11866
- OSV: https://osv.dev/vulnerability/CVE-2026-11866

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-11866/
Summaries are generated and may contain mistakes; the official description above is the record.