Vulnerability Information
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Vulnerability Title
Zulip vulnerable to insufficient authorization check for edition/deletion of messages and topics in private streams by former subscribers
Vulnerability Description
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.
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N
Vulnerability Type
授权机制不恰当
Vulnerability Title
Zulip 授权问题漏洞
Vulnerability Description
Zulip是美国Zulip公司的一款功能强大的开源群聊应用程序。用于将实时聊天的即时性与线程对话的生产力优势相结合。 Zulip 6.0及之前版本存在授权问题漏洞，该漏洞源于对前订阅者在私有流中编辑及删除消息和主题的授权检查不足。
CVSS Information
N/A
Vulnerability Type
N/A