How severe is CVE-2024-56517?

No CVSS score has been assigned to CVE-2024-56517 yet. Review the advisory details and affected package list to assess your exposure.

Which packages are affected by CVE-2024-56517?

CVE-2024-56517 affects the following packages: tltneon/lgsl (Packagist). Ecosystems affected: Packagist.

How do I fix CVE-2024-56517?

No patched version of tltneon/lgsl has shipped for CVE-2024-56517 yet. Where your build allows, override or pin the dependency away from the vulnerable range, and apply any maintainer-recommended mitigation.

How do I detect CVE-2024-56517 in my Packagist dependencies?

Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for tltneon/lgsl, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.

How do I mitigate CVE-2024-56517 if there is no patch (or I can't update yet)?

If you can't upgrade right away: gate or disable the affected feature, validate untrusted input at the boundary, and avoid passing attacker-controlled data into the vulnerable path. O3's runtime protection blocks exploitation in production as an interim safeguard until the upgrade lands.

How does O3 Security protect against CVE-2024-56517?

O3 Security's impact-aware SCA analyses which vulnerable code paths your application actually calls, so a match like CVE-2024-56517 can be triaged on real exposure rather than presence alone.

Is CVE-2024-56517 actively exploited in the wild?

No public exploit code has been indexed for CVE-2024-56517 yet. This does not mean the vulnerability cannot be exploited — absence of public exploits does not imply safety. Apply the recommended fix and use O3 Security to monitor your exposure.

What is the EPSS score for CVE-2024-56517?

CVE-2024-56517 has an EPSS (Exploit Prediction Scoring System) score of 0.6%, placing it in the 48th percentile of all CVEs. EPSS is maintained by FIRST.org and estimates the probability that a vulnerability will be exploited in the wild within the next 30 days. This score indicates relatively lower exploitation probability, though the CVSS severity should still guide your patching priority.

What type of vulnerability is CVE-2024-56517?

CVE-2024-56517 is classified as Cross-site Scripting (XSS) (CWE-79). This weakness type describe the underlying flaw category, which helps determine the potential impact and the right class of mitigation. This is a high-impact weakness class that often enables remote code execution or data exposure.

When was CVE-2024-56517 published, and has it been updated?

CVE-2024-56517 was published on December 30, 2024 and was last updated on August 12, 2026. Advisory data evolves as severity scores, affected ranges, and exploit intelligence are revised — always check the latest version of the advisory before acting.

🐘 Packagist

Not in CISA KEV

CVE-2024-56517 — tltneon/lgsl

Fix: tltneon/lgsl@7ecb839

CVE-2024-56517 is a Cross-site Scripting (XSS) vulnerability in tltneon/lgsl. No vendor fix is recorded yet; mitigation options are listed below.

LGSL has a reflected XSS at /lgsl_files/lgsl_list.php

Also known asGHSA-ggwq-xc72-33r3

Published

Dec 30, 2024

Updated

Aug 12, 2026

Affected

1 pkg

Patched

See advisory

Exploits

None indexed

Exploitation data as of Sep 20, 2026 · OSV.dev, NVD, FIRST.org (EPSS)

Exploitation Status

Proof-of-concept exploit code exists

CISA’s SSVC triage found public proof-of-concept exploit code for this CVE, though no confirmed active exploitation.
A successful exploit gives an attacker total control of the affected component, not partial access.

Exploitation and automatability from CISA’s SSVC triage for CVE-2024-56517.

EPSS Exploitation Probability

via FIRST.org ↗

0.6%probability of exploitation in next 30 days

Lower Risk0.00%

Lower risk than most CVEs48th percentile — riskier than 48% of all scored CVEsHighest risk

EPSS (Exploit Prediction Scoring System) is a daily probability model maintained by FIRST.org. It estimates the likelihood a CVE will be exploited in production environments within the next 30 days, derived from real-world threat intelligence signals.

Real-World Exposure

1 pkg affected

🐘tltneon/lgsl

Real-time download stats are indexed for npm and PyPI packages. This vulnerability affects Packagist packages — download data is not available via public APIs for these ecosystems.

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.

Affected Packages

1 total

Ecosystem	Package	Vulnerable range	Fix
🐘Packagist	`tltneon/lgsl`	all versions	No fix

Detection & mitigation playbook

Open-source dependency

Detect
Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for tltneon/lgsl, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.
Remediation status
No patched version of tltneon/lgsl has shipped for CVE-2024-56517 yet. Where your build allows, override or pin the dependency away from the vulnerable range, and apply any maintainer-recommended mitigation.
Mitigate without a patch
If you can't upgrade right away: gate or disable the affected feature, validate untrusted input at the boundary, and avoid passing attacker-controlled data into the vulnerable path. O3's runtime protection blocks exploitation in production as an interim safeguard until the upgrade lands.
How O3 protects you
O3 Security's impact-aware SCA analyses which vulnerable code paths your application actually calls, so a match like CVE-2024-56517 can be triaged on real exposure rather than presence alone.

Tailored to CVE-2024-56517. Runtime protection reduces exposure until a permanent patch is applied and verified — it complements patching, it doesn't replace it.

Frequently Asked Questions

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.

O3 Security · Impact-Aware SCA

Is CVE-2024-56517 in your dependencies?

O3 Security finds CVE-2024-56517 across Packagist dependencies, including transitive ones, and its impact-aware SCA ranks findings by whether your code actually calls the vulnerable path.

Scan my dependencies How O3 SCA works