# CVE-2023-50924: Stored XSS in Overview and Output fields

> Authenticated users can inject JavaScript via specific fields, leading to code execution in other users' sessions when viewing overview pages.

- **Severity:** High 7.3 (`CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H`)
- **Exploited in the wild:** Not known
- **Login needed:** Any signed-in user
- **Attackable:** Local or same network only
- **Victim action needed:** A user has to click or open something
- **Fix available:** No
- **Published:** 22 Dec 2023
- **Updated:** 27 Nov 2024
- **Also known as:** GHSA-p5ch-rrpm-wvhm

## What is CVE-2023-50924?

CVE-2023-50924 is a high-severity cross-site scripting vulnerability in engelsystem, published on 22 Dec 2023. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.

### Official description

Englesystem is a shift planning system for chaos events. Engelsystem prior to v3.4.1 performed insufficient validation of user supplied data for the DECT number, mobile number, and work-log comment fields. The values of those fields would be displayed in corresponding log overviews, allowing the injection and execution of Javascript code in another user's context. This vulnerability enables an authenticated user to inject Javascript into other user's sessions. The injected JS will be executed during normal usage of the system when viewing, e.g., overview pages. This issue has been fixed in version 3.4.1.

Weakness: CWE-79 (Improper Neutralization of Input During Web Page Generation)

## Which versions are affected by CVE-2023-50924?

It affects 1 product.


Products: Engelsystem Engelsystem.

## How do I fix CVE-2023-50924?

No fix has been published for CVE-2023-50924 yet. Limit exposure of the affected software until one is available.

## Is CVE-2023-50924 being exploited?

There is no known exploitation of CVE-2023-50924 in the wild and no public exploit code.

## Other vulnerabilities in engelsystem

- [CVE-2018-19182](https://insights.sbomify.com/CVE-2018-19182/): Cross-site request forgery in n/a (high 8.8)
- [CVE-2023-45659](https://insights.sbomify.com/CVE-2023-45659/): Session is not expiring after password reset in Engelsystem (low 3.6)
- [CVE-2023-45152](https://insights.sbomify.com/CVE-2023-45152/): Blind Server Side Request Forgery (SSRF) in remote schedule import feature in Engelsystem (low 2.0)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2023-50924 and fix it if it is affected.

What it is: CVE-2023-50924 is a high-severity cross-site scripting vulnerability in engelsystem, published on 22 Dec 2023. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.
Exploitation: There is no known exploitation of CVE-2023-50924 in the wild and no public exploit code.

Affected product: engelsystem. 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-2023-50924/ (Markdown: https://insights.sbomify.com/CVE-2023-50924/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2023-50924
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2023-50924
- OSV: https://osv.dev/vulnerability/CVE-2023-50924

---
From sbomify Insights: https://insights.sbomify.com/CVE-2023-50924/
Summaries are generated and may contain mistakes; the official description above is the record.