# CVE-2023-39518: social-media-skeleton stored Cross-site Scripting vulnerability

> An attacker can inject malicious scripts into the social-media-skeleton web application, potentially compromising user sessions and data.

- **Severity:** Medium 5.4 (`CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N`)
- **Exploited in the wild:** Not known
- **Login needed:** Any signed-in user
- **Attackable:** Over the internet
- **Victim action needed:** A user has to click or open something
- **Fix available:** No
- **Published:** 8 Aug 2023
- **Updated:** 3 Oct 2024
- **Also known as:** GHSA-2jxx-r967-f76p

## What is CVE-2023-39518?

CVE-2023-39518 is a medium-severity cross-site scripting vulnerability in fobybus social-media-skeleton, published on 8 Aug 2023. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.

### Official description

social-media-skeleton is an uncompleted social media project implemented using PHP, MySQL, CSS, JavaScript, and HTML. Versions 1.0.0 until 1.0.3 have a stored cross-site scripting vulnerability. The problem is patched in v1.0.3.

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

## Which versions are affected by CVE-2023-39518?

It affects 1 product.


Products: Fobybus Social-Media-Skeleton.

## How do I fix CVE-2023-39518?

No fix has been published for CVE-2023-39518 yet. Limit exposure of the affected software until one is available.

## Is CVE-2023-39518 being exploited?

There is no known exploitation of CVE-2023-39518 in the wild and no public exploit code.

## Other vulnerabilities in fobybus social-media-skeleton

- [CVE-2023-39344](https://insights.sbomify.com/CVE-2023-39344/): social-media-skeleton vulnerable to Pre-Auth SQLi leading to RCE (critical 10.0)
- [CVE-2023-40173](https://insights.sbomify.com/CVE-2023-40173/): Unsalted passwords in fobybus/social-media-skeleton (high 7.5)
- [CVE-2023-40174](https://insights.sbomify.com/CVE-2023-40174/): Insufficient Session Expiration in fobybus/social-media-skeleton (medium 6.8)
- [CVE-2023-40172](https://insights.sbomify.com/CVE-2023-40172/): Cross-Site Request Forgery (CSRF) in fobybus/social-media-skeleton (medium 6.5)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2023-39518 and fix it if it is affected.

What it is: CVE-2023-39518 is a medium-severity cross-site scripting vulnerability in fobybus social-media-skeleton, published on 8 Aug 2023. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.
Exploitation: There is no known exploitation of CVE-2023-39518 in the wild and no public exploit code.

Affected product: fobybus social-media-skeleton. 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-2023-39518/ (Markdown: https://insights.sbomify.com/CVE-2023-39518/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2023-39518
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2023-39518
- OSV: https://osv.dev/vulnerability/CVE-2023-39518

---
From sbomify Insights: https://insights.sbomify.com/CVE-2023-39518/
Summaries are generated and may contain mistakes; the official description above is the record.