Wekan v6.84 and earlier is vulnerable to Cross Site Scripting (XSS). An attacker with user privilege on kanban board can insert JavaScript code in in "Reaction to comment" feature.
packages/wekan-ldap/server/ldap.js in Wekan before 4.87 can process connections even though they are not authorized by the Certification Authority trust store,
Wekan version 1.04.0 contains a Email / Username Enumeration vulnerability in Register' and 'Forgot your password?' pages that can result in A remote attacker could perform a brute force attack to obtain valid usernames and email addresses.. This attack appear to be exploitable via HTTP Request.