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


Reported on

Sep 2nd 2021

✍️ Description

A malicious actor is able to add "new Retrospective" with a malicious payload, and upon opening the research menu, the XSS payload is being executed.

🕵️‍♂️ Proof of Concept

  • 1; Log in with a proper roled user
  • 2; Add a new board to the system at Retrospective menu on the left
  • 3; Insert the following payload in the name field: <script>alert(document.cookie)</script>
  • 4; Open the Retrospective menu, and the xss payload is being executed.

💥 Impact

With such opprotunity, the malicious actor is able to gather session identifiers from any users. Upon receiving this information, the Confidentiality, Integrity is compromised of the target's account.

We have contacted a member of the leantime team and are waiting to hear back 2 years ago
Marcel Folaron validated this vulnerability 2 years ago
TheLabda has been awarded the disclosure bounty
The fix bounty is now up for grabs
Marcel Folaron marked this as fixed in 2.1.9 with commit c204bc 2 years ago
Marcel Folaron has been awarded the fix bounty
This vulnerability will not receive a CVE
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