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


Reported on

Aug 17th 2021

✍️ Description

Stored xss bug using a xss payload in the Ideas area when adding a comment in the discussion area

🕵️‍♂️ Proof of Concept

Goto http://localhost/ideas/showBoards and click on add an idea and copy paste the following xss payload in the discussion field

"><img src=x onerror=alert(document.cookie)>

Click on safe and see the xss popup with the cookie. alt text

💥 Impact

Possible to steal admin cookies or take over another account via cookie grepping.

💥 Remediation

Validate user input


We have contacted a member of the leantime team and are waiting to hear back 9 months ago
8 months ago


HI @maintainer any update about this issue?

Marcel Folaron validated this vulnerability 7 months ago
ribersec has been awarded the disclosure bounty
The fix bounty is now up for grabs
Marcel Folaron confirmed that a fix has been merged on c204bc a month ago
Marcel Folaron has been awarded the fix bounty
to join this conversation