HexBrain

Rocket.Chat · Report #1406479

Moving private messages into vision with updateMessage method

Validstatus
highseverity
10upvotes
9 May 2023disclosed

Summary

A vulnerability has been discovered in the updateMessage Meteor Method, allowing adversaries to edit messages without proper authorization. This occurs due to insufficient permission checks for the "rid" parameter. Attackers can exploit this issue to leak private messages with known message IDs.

How it was found

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