# CVE-2022-0421: Five Star Restaurant Reservations < 2.4.12 - Unauthenticated Arbitrary Payment Status Update to Stored XSS

> Unauthenticated attackers can modify payment statuses and inject scripts that execute when admins view failed payments.

- **Severity:** Medium 6.1 (`CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N`)
- **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:** 21 Nov 2022
- **Updated:** 30 Apr 2025
- **Also known as:** GHSA-rm3p-6j6m-68q8

## What is CVE-2022-0421?

CVE-2022-0421 is a medium-severity cross-site scripting vulnerability in Unknown Five Star Restaurant Reservations, published on 21 Nov 2022. 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 Five Star Restaurant Reservations WordPress plugin before 2.4.12 does not have authorisation when changing whether a payment was successful or failed, allowing unauthenticated users to change the payment status of arbitrary bookings. Furthermore, due to the lack of sanitisation and escaping, attackers could perform Cross-Site Scripting attacks against a logged in admin viewing the failed payments

Weakness: CWE-116 (Improper Encoding or Escaping of Output)

## Which versions are affected by CVE-2022-0421?

It affects 1 product.


Products: Fivestarplugins Five Star Restaurant Reservations.

## How do I fix CVE-2022-0421?

No fix has been published for CVE-2022-0421 yet. Limit exposure of the affected software until one is available.

## Is CVE-2022-0421 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2022-0421 exists.

## Other vulnerabilities in Unknown Five Star Restaurant Reservations

- [CVE-2021-24965](https://insights.sbomify.com/CVE-2021-24965/): Five Star Restaurant Reservations < 2.4.8 - Subscriber+ Stored Cross-Site Scripting (medium 5.4)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2022-0421 and fix it if it is affected.

What it is: CVE-2022-0421 is a medium-severity cross-site scripting vulnerability in Unknown Five Star Restaurant Reservations, published on 21 Nov 2022. 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-2022-0421 exists.

Affected product: Unknown Five Star Restaurant Reservations. 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-2022-0421/ (Markdown: https://insights.sbomify.com/CVE-2022-0421/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2022-0421
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2022-0421
- OSV: https://osv.dev/vulnerability/CVE-2022-0421

---
From sbomify Insights: https://insights.sbomify.com/CVE-2022-0421/
Summaries are generated and may contain mistakes; the official description above is the record.