# CVE-2023-6767: SourceCodester Wedding Guest e-Book add-guest.php cross site scripting

> An attacker can inject malicious scripts via the name parameter in add-guest.php, potentially compromising user sessions or data.

- **Severity:** Medium 4.3 (`CVSS:3.1/AV:N/AC:L/PR:N/UI:R/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:** A user has to click or open something
- **Fix available:** No
- **Published:** 13 Dec 2023
- **Updated:** 21 Nov 2024
- **Also known as:** GHSA-23jw-vpm7-7386

## What is CVE-2023-6767?

CVE-2023-6767 is a medium-severity cross-site scripting vulnerability in SourceCodester Wedding Guest e-Book, published on 13 Dec 2023. 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

A vulnerability, which was classified as problematic, was found in SourceCodester Wedding Guest e-Book 1.0. This affects an unknown part of the file /endpoint/add-guest.php. The manipulation of the argument name leads to cross site scripting. It is possible to initiate the attack remotely. The associated identifier of this vulnerability is VDB-247899.

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

## Which versions are affected by CVE-2023-6767?

It affects 1 product.


Products: Remyandrade Wedding Guest E-Book.

## How do I fix CVE-2023-6767?

No fix has been published for CVE-2023-6767 yet. Limit exposure of the affected software until one is available.

## Is CVE-2023-6767 being exploited?

There is no known exploitation of CVE-2023-6767 in the wild and no public exploit code.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2023-6767 and fix it if it is affected.

What it is: CVE-2023-6767 is a medium-severity cross-site scripting vulnerability in SourceCodester Wedding Guest e-Book, published on 13 Dec 2023. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Exploitation: There is no known exploitation of CVE-2023-6767 in the wild and no public exploit code.

Affected product: SourceCodester Wedding Guest e-Book. 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-2023-6767/ (Markdown: https://insights.sbomify.com/CVE-2023-6767/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2023-6767
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2023-6767
- OSV: https://osv.dev/vulnerability/CVE-2023-6767

---
From sbomify Insights: https://insights.sbomify.com/CVE-2023-6767/
Summaries are generated and may contain mistakes; the official description above is the record.