Zulip vulnerable to insufficient authorization check for edition/deletion of messages and topics in private streams by former subscribers
Summary
Zulip vulnerable to insufficient authorization check for edition/deletion of messages and topics in private streams by former subscribers
Original description
The description as published by the source.
Zulip is an open-source team collaboration tool with topic-based threading that combines email and chat. Users who used to be subscribed to a private stream and have been removed from it since retain the ability to edit messages/topics, move messages to other streams, and delete messages that they used to have access to, if other relevant organization permissions allow these actions. For example, a user may be able to edit or delete their old messages they posted in such a private stream. An administrator will be able to delete old messages (that they had access to) from the private stream. This issue was fixed in Zulip Server version 7.3.
Source: OSV.dev (Open Source Vulnerabilities) NVD GitHub Advisory OSV
References
- advisory github.com
- advisory github.com
- advisory nvd.nist.gov
- web zulip.readthedocs.io