CVE-2025-47930 – Zulip Public Channel Creation Privilege Escalation Vulnerability

CVE ID : CVE-2025-47930

Published : May 16, 2025, 12:15 a.m. | 44 minutes ago

Description : Zulip is an open-source team chat application. Starting in version 10.0 and prior to version 10.3, the “Who can create public channels” access control mechanism can be circumvented by creating a private or web-public channel, and then changing the channel privacy to public. A similar technique works for creating private channels without permission, though such a process requires either the API or modifying the HTML, as we do mark the “private” radio button as disabled in such cases. Version 10.3 contains a patch.

Severity: 0.0 | NA

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