Lightweight Music Server 3.76.0 Stored XSS via Media File Metadata Tags

Lightweight Music Server (LMS) though 3.76.0 contains a stored cross-site scripting vulnerability that allows attackers to execute arbitrary JavaScript by embedding malicious HTML in media file metadata tags such as GENRE, ARTIST, or ALBUM. Attackers can introduce a crafted media file into the victim's library, causing the payload to be saved during library scanning and executed automatically in the web interface due to tag content being rendered using Wt::TextFormat::UnsafeXHTML without sanitization in src/lms/ui/Utils.cpp.

Reflected XSS in LMS

A Reflected Cross-Site Scripting (XSS) vulnerability exists in LMS (LAN Management System) before commit 9c5651b in the "dbrecover.php" and "netremap.php" modules where unsanitized GET parameters are directly embedded into HTML output. This allows an attacker to inject arbitrary JavaScript when an authenticated user clicks a crafted link, provided the required conditions (such as a network defined in the system) are met.

SQL Injection in LMS

An SQL Injection vulnerability exists in LMS (LAN Management System) before commit 4cb30a7 within the "tarifflist.php" module due to insufficient sanitization of the POST "tg[]" parameter. The application directly concatenates user-supplied array values into an SQL query using "implode()", allowing authenticated attackers to perform Error-Based SQL injection and extract sensitive database information.

OS Command Injection in LMS

An OS Command Injection vulnerability exists in LMS (LAN Management System) before commit 9fcb4de due to an IP address parameter being passed to the "exec()" function without proper validation, allowing attackers to execute arbitrary operating system commands.

lms version <= LMS_011123 contains a Local File Disclosure vulnerability in File reading functionality in LMS module that can result in Possible to read files on the server. This attack appear to be exploitable via GET parameter. This vulnerability appears to have been fixed in after commit 254765e.