# CVE-2023-24373: WordPress Booking calendar, Appointment Booking System plugin <= 3.2.3 - Bypass vulnerability

> Attackers can manipulate hidden fields to bypass security controls in the WpDevArt Booking calendar plugin.

- **Severity:** Low 3.7 (`CVSS:3.1/AV:N/AC:H/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:** 3 Jun 2024
- **Updated:** 28 Apr 2026
- **Also known as:** GHSA-x838-jxp7-m9m8

## What is CVE-2023-24373?

CVE-2023-24373 is a low-severity vulnerability in WpDevArt Booking calendar, Appointment Booking System, published on 3 Jun 2024. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

External Control of Assumed-Immutable Web Parameter vulnerability in WpDevArt Booking calendar, Appointment Booking System allows Manipulating Hidden Fields.This issue affects Booking calendar, Appointment Booking System: from n/a through 3.2.3.

Weakness: CWE-472 (External Control of Assumed-Immutable Web Parameter)

## Which versions are affected by CVE-2023-24373?

It affects 1 product.


Products: Wpdevart Booking Calendar.

## How do I fix CVE-2023-24373?

No fix has been published for CVE-2023-24373 yet. Limit exposure of the affected software until one is available.

## Is CVE-2023-24373 being exploited?

There is no known exploitation of CVE-2023-24373 in the wild and no public exploit code.

## Other vulnerabilities in WpDevArt Booking calendar, Appointment Booking System

- [CVE-2022-3982](https://insights.sbomify.com/CVE-2022-3982/): Booking Calendar < 3.2.2 - Unauthenticated Arbitrary File Upload (critical 9.8)
- [CVE-2018-10363](https://insights.sbomify.com/CVE-2018-10363/): Business logic in n/a (high 7.5)
- [CVE-2022-47428](https://insights.sbomify.com/CVE-2022-47428/): WordPress Booking calendar, Appointment Booking System Plugin <= 3.2.7 is vulnerable to SQL Injection (medium 6.7)
- [CVE-2024-10856](https://insights.sbomify.com/CVE-2024-10856/): Booking Calendar WpDevArt <= 3.2.19 - Authenticated (Contributor+) SQL Injection (medium 6.5)
- [CVE-2022-47438](https://insights.sbomify.com/CVE-2022-47438/): WordPress Booking calendar, Appointment Booking System Plugin <= 3.2.3 is vulnerable to Cross Site Scripting (XSS) (medium 5.9)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2023-24373 and fix it if it is affected.

What it is: CVE-2023-24373 is a low-severity vulnerability in WpDevArt Booking calendar, Appointment Booking System, published on 3 Jun 2024. 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-2023-24373 in the wild and no public exploit code.

Affected product: WpDevArt Booking calendar, Appointment Booking System. 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-2023-24373/ (Markdown: https://insights.sbomify.com/CVE-2023-24373/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2023-24373
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2023-24373
- OSV: https://osv.dev/vulnerability/CVE-2023-24373

---
From sbomify Insights: https://insights.sbomify.com/CVE-2023-24373/
Summaries are generated and may contain mistakes; the official description above is the record.