CVE-2025-47930

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.

CVSS v3 5.3 MEDIUM

5.3^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 3.9 / Impact : 1.4

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact LOW

Availability Impact NONE

Scope UNCHANGED

References

Link	Resource
https://github.com/zulip/zulip/commit/d2ff4bda4c3efa30fc3ab1f151255cfdbf370f78	Patch
https://github.com/zulip/zulip/security/advisories/GHSA-rqg7-xfqg-v7q5	Third Party Advisory
https://zulip.com/help/configure-who-can-create-channels	Product
https://zulip.readthedocs.io/en/latest/overview/changelog.html#zulip-server-10-3	Release Notes

Configurations

Configuration 1 (hide)

cpe:2.3:a:zulip:zulip:*:*:*:*:*:*:*:*

History

No history.

Information

Published : 2025-05-16 00:15

Updated : 2025-08-27 02:26

NVD link : CVE-2025-47930

Mitre link : CVE-2025-47930

CVE.ORG link : CVE-2025-47930

JSON object : View

Products Affected

zulip

zulip

CWE

CWE-863

Incorrect Authorization

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