CVE-2024-56517 – tltneon/lgsl

Package

Manager: composer
Name: tltneon/lgsl
Vulnerable Version: >=0 <=6.2.1

Severity

Level: Medium

CVSS v3.1: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:N/I:L/A:N/E:U/RL:O/RC:C

CVSS v4.0: 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

EPSS: 0.00223 pctl0.44873

Details

LGSL has a reflected XSS at /lgsl_files/lgsl_list.php # Reflected XSS at /lgsl_files/lgsl_list.php **Description:** Vulnerability: A reflected XSS vulnerability exists in the `Referer` HTTP header of [LGSL v6.2.1](https://github.com/tltneon/lgsl/releases/tag/v6.2.1). 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. The vulnerability is present at [Line 20-24](https://github.com/tltneon/lgsl/blob/master/lgsl_files/lgsl_list.php#L20-L24) ```php $uri = $_SERVER['REQUEST_URI']; if ($lgsl_config['preloader']) { $uri = $_SERVER['HTTP_REFERER']; } ``` **Proof of Concept:** 1. Capture a request to the path `/lgsl_files/lgsl_list.php`. 2. Inject the following payload into the Referer header: `test'><script>alert(1)</script><`. 3. Send the request. 4. The XSS payload is triggered when reloading.   **Impact:** Execution of Malicious Code

Metadata

Created: 2024-12-30T16:49:28Z
Modified: 2024-12-30T18:44:58Z
Source: https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2024/12/GHSA-ggwq-xc72-33r3/GHSA-ggwq-xc72-33r3.json
CWE IDs: ["CWE-79"]
Alternative ID: GHSA-ggwq-xc72-33r3
Finding: F008
Auto approve: 1