Cross-site Scripting (XSS) - Reflected in leantime/leantime


Reported on

Aug 25th 2021

✍️ Description

Cross-site scripting (XSS) vulnerabilities

Line 9 of delCanvasItem.tpl.php sends unvalidated data to a web browser, which can result in the browser executing malicious code.

🕵️‍♂️ Proof of Concept

<form method="post" action="<?=BASE_URL ?>/leancanvas/delCanvasItem/<?php echo $_GET['id']?>">

💥 Impact

The attacker can:

Perform any action within the application that the user can perform. View any information that the user is able to view. Modify any information that the user is able to modify. Initiate interactions with other application users, including malicious attacks, that will appear to originate from the initial victim user.

We have contacted a member of the leantime team and are waiting to hear back 3 months ago
Marcel Folaron validated this vulnerability 3 months ago
rohit75033 has been awarded the disclosure bounty
The fix bounty is now up for grabs
Marcel Folaron confirmed that a fix has been merged on 7cbdbf 3 months ago
Marcel Folaron has been awarded the fix bounty