SB2025033108 - Multiple vulnerabilities in Zulip Server

Description

This security bulletin contains information about 2 vulnerabilities.

1) Authorization Bypass Through User-Controlled SQL Primary Key (CVE-ID: CVE-2025-30369)

CWE-ID: CWE-566 - Authorization Bypass Through User-Controlled SQL Primary Key

CVSSv4: 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

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.

2) Authorization Bypass Through User-Controlled SQL Primary Key (CVE-ID: CVE-2025-30368)

CWE-ID: CWE-566 - Authorization Bypass Through User-Controlled SQL Primary Key

CVSSv4: 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

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 the organization export of a different organization.

Remediation

Install update from vendor's website.

References

• https://github.com/zulip/zulip/security/advisories/GHSA-fcgx-q63f-7gw4
• https://github.com/zulip/zulip/security/advisories/GHSA-rmhr-5ffq-qcrc