#VU106255 Authorization Bypass Through User-Controlled SQL Primary Key in Zulip Server - CVE-2025-30369

Vulnerability identifier: #VU106255

Vulnerability risk: Low

CVSSv4.0: 1.2 [CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2025-30369

CWE-ID: CWE-566

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Zulip Server
Web applications / Other software

Vendor: Zulip

Description

The vulnerability allows a remote user to bypass security restrictions and on the target system.

The weakness exists due to authorization bypass through user-controlled key. A remote administrator can delete custom profile fields belonging to a different organization.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Zulip Server: 1.6.0 - 10.0

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External links
https://github.com/zulip/zulip/security/advisories/GHSA-fcgx-q63f-7gw4

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote authenticated privileged user via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.