Zulip is an open-source team collaboration tool. Zulip Server versions 2.1.0 above have a user interface tool, accessible only to server owners and server administrators, which provides a way to download a "public data" export. While this export is only accessible to administrators, in many configurations server administrators are not expected to have access to private messages and private streams. However, the "public data" export which administrators could generate contained the attachment contents for all attachments, even those from private messages and streams. Zulip Server version 5.4 contains a patch for this issue.
The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information.
The product allows the upload or transfer of dangerous file types that are automatically processed within its environment.
| Link | Tags |
|---|---|
| https://github.com/zulip/zulip/security/advisories/GHSA-58pm-88xp-7x9m | third party advisory release notes |
| https://blog.zulip.com/2022/07/12/zulip-cloud-data-exports | vendor advisory |
| https://blog.zulip.com/2022/07/12/zulip-server-5-4-security-release | release notes vendor advisory |