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


Reported on

Aug 17th 2021

✍️ Description

Stored xss bug using a xss payload in the Retrospectives Title when adding a new retrospective

🕵️‍♂️ Proof of Concept

Goto http://localhost/retrospectives/showBoards and click on add more and copy paste the following xss payload in the title

"><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 a year ago
Marcel Folaron validated this vulnerability a year ago
ribersec has been awarded the disclosure bounty
The fix bounty is now up for grabs
Marcel Folaron marked this as fixed with commit 7cbdbf a year ago
Marcel Folaron has been awarded the fix bounty
This vulnerability will not receive a CVE
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