CVE-2025-47930

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.

Weakness classification

• security-advisories@github.com: CWE-863

Primary references

• security-advisories@github.com — Patch
• security-advisories@github.com — Third Party Advisory
• security-advisories@github.com — Product
• security-advisories@github.com — Release Notes