# CVE-2026-77689: Amelia Pro 9.0 - 9.8 - Unauthenticated Payment Bypass

> Unauthenticated attackers can bypass payment verification to book confirmed appointments without paying, affecting users of the Amelia Pro WordPress plugin.

- **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:** 12 Sep 2026
- **Updated:** 12 Sep 2026
- **Also known as:** GHSA-mqrq-3vgp-g3ff

## What is CVE-2026-77689?

CVE-2026-77689 is a medium-severity vulnerability in Unknown Booking for Appointments and Events Calendar, published on 12 Sep 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

The Booking for Appointments and Events Calendar  WordPress plugin before 9.8.1 does not verify that a payment was actually taken before recording a booking as paid, trusting the payment gateway named in a public, unauthenticated booking request even when the site has never configured that gateway. This lets an unauthenticated attacker obtain confirmed, fully paid appointments and events without any payment being collected.

Weakness: CWE-284 (Improper Access Control)

## Which versions are affected by CVE-2026-77689?


## How do I fix CVE-2026-77689?

No fix has been published for CVE-2026-77689 yet. Limit exposure of the affected software until one is available.

## Is CVE-2026-77689 being exploited?

There is no known exploitation of CVE-2026-77689 in the wild and no public exploit code.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-77689 and fix it if it is affected.

What it is: CVE-2026-77689 is a medium-severity vulnerability in Unknown Booking for Appointments and Events Calendar, published on 12 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-2026-77689 in the wild and no public exploit code.

Affected product: Unknown Booking for Appointments and Events Calendar. 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-2026-77689/ (Markdown: https://insights.sbomify.com/CVE-2026-77689/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-77689
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-77689
- OSV: https://osv.dev/vulnerability/CVE-2026-77689

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-77689/
Summaries are generated and may contain mistakes; the official description above is the record.