# CVE-2024-56517: LGSL has a reflected XSS at /lgsl_files/lgsl_list.php

> Attackers can inject arbitrary JavaScript via the Referer header in LGSL, leading to reflected XSS and potential code execution in victim browsers.

- **Severity:** Medium 5.3 (`CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA: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:** 30 Dec 2024
- **Updated:** 30 Dec 2024
- **Also known as:** GHSA-ggwq-xc72-33r3

## What is CVE-2024-56517?

CVE-2024-56517 is a medium-severity cross-site scripting vulnerability in tltneon lgsl, published on 30 Dec 2024. 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

LGSL (Live Game Server List) provides online status lists for online video games. Versions up to and including 6.2.1 contain a reflected cross-site scripting vulnerability in the `Referer` HTTP header. The vulnerability allows attackers to inject arbitrary JavaScript code, which is reflected in the HTML response without proper sanitization. When crafted malicious input is provided in the `Referer` header, it is echoed back into an HTML attribute in the application’s response. Commit 7ecb839df9358d21f64cdbff5b2536af25a77de1 contains a patch for the issue.

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

## Which versions are affected by CVE-2024-56517?

2 open source packages ship an affected version, including tltneon/lgsl.


| Package | Ecosystem | Affected | Fixed in |
| --- | --- | --- | --- |
| `tltneon/lgsl` | Packagist | All versions to 6.2.1 | None |
| `tltneon/lgsl` | Packagist | All versions to 6.2.1 | None |

## How do I fix CVE-2024-56517?

No fix has been published for CVE-2024-56517 yet. Limit exposure of the affected software until one is available.

## Is CVE-2024-56517 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2024-56517 exists.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2024-56517 and fix it if it is affected.

What it is: CVE-2024-56517 is a medium-severity cross-site scripting vulnerability in tltneon lgsl, published on 30 Dec 2024. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Exploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2024-56517 exists.

Affected packages and fixed versions:
- tltneon/lgsl (Packagist): affected all versions up to 6.2.1; no fix listed
- tltneon/lgsl (Packagist): affected all versions up to 6.2.1; no fix listed

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-2024-56517/ (Markdown: https://insights.sbomify.com/CVE-2024-56517/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2024-56517
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2024-56517
- OSV: https://osv.dev/vulnerability/CVE-2024-56517

---
From sbomify Insights: https://insights.sbomify.com/CVE-2024-56517/
Summaries are generated and may contain mistakes; the official description above is the record.