# CVE-2023-1561: code-projects Simple Online Hotel Reservation System add_room.php unrestricted upload

> Attackers can upload malicious files via add_room.php in Simple Online Hotel Reservation System, potentially leading to remote code execution.

- **Severity:** Medium 6.3 (`CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L`)
- **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:** 22 Mar 2023
- **Updated:** 2 Aug 2024
- **Also known as:** GHSA-3457-2469-93x2

## What is CVE-2023-1561?

CVE-2023-1561 is a medium-severity vulnerability in code-projects Simple Online Hotel Reservation System, published on 22 Mar 2023. Any signed-in user can exploit it over the network, with no action from the victim.

### Official description

A vulnerability, which was classified as critical, was found in code-projects Simple Online Hotel Reservation System 1.0. Affected is an unknown function of the file add_room.php. The manipulation leads to unrestricted upload. It is possible to launch the attack remotely. VDB-223554 is the identifier assigned to this vulnerability.

Weakness: CWE-434 (Unrestricted Upload of File with Dangerous Type)

## Which versions are affected by CVE-2023-1561?

It affects 1 product.


Products: Fabian Simple Online Hotel Reservation System.

## How do I fix CVE-2023-1561?

No fix has been published for CVE-2023-1561 yet. Limit exposure of the affected software until one is available.

## Is CVE-2023-1561 being exploited?

There is no known exploitation of CVE-2023-1561 in the wild and no public exploit code.

## Other vulnerabilities in code-projects Simple Online Hotel Reservation System

- [CVE-2025-13169](https://insights.sbomify.com/CVE-2025-13169/): code-projects Simple Online Hotel Reservation System add_query_reserve.php sql injection (medium 6.9)
- [CVE-2025-13170](https://insights.sbomify.com/CVE-2025-13170/): code-projects Simple Online Hotel Reservation System edit_account.php sql injection (medium 6.9)
- [CVE-2025-6578](https://insights.sbomify.com/CVE-2025-6578/): code-projects Simple Online Hotel Reservation System delete_account.php sql injection (medium 6.9)
- [CVE-2025-6448](https://insights.sbomify.com/CVE-2025-6448/): code-projects Simple Online Hotel Reservation System delete_room.php sql injection (medium 6.9)
- [CVE-2025-6449](https://insights.sbomify.com/CVE-2025-6449/): code-projects Simple Online Hotel Reservation System checkout_query.php sql injection (medium 6.9)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2023-1561 and fix it if it is affected.

What it is: CVE-2023-1561 is a medium-severity vulnerability in code-projects Simple Online Hotel Reservation System, published on 22 Mar 2023. Any signed-in user can exploit it over the network, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2023-1561 in the wild and no public exploit code.

Affected product: code-projects Simple Online Hotel Reservation 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-2023-1561/ (Markdown: https://insights.sbomify.com/CVE-2023-1561/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2023-1561
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2023-1561
- OSV: https://osv.dev/vulnerability/CVE-2023-1561

---
From sbomify Insights: https://insights.sbomify.com/CVE-2023-1561/
Summaries are generated and may contain mistakes; the official description above is the record.