CVE Vulnerability

CVE-2021-30479

An issue was discovered in Zulip Server before 3.4. A bug in the implementation of the all_public_streams API feature resulted in guest users being able to receive message traffic to public streams that should have been only accessible to members of the organization.

5 /10

CVSS v2.0 :

V3 Legend

Vector :

Exploitability : 10 / Impact : 2.9

Attack Vector

Attack Complexity

Privileges Required

User Interaction

Confidentiality Impact PARTIAL

Integrity Impact NONE

Availability Impact NONE

Scope

5.3 /10

CVSS v3.0 : MEDIUM

V3 Legend

Vector :

Exploitability : 3.9 / Impact : 1.4

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact LOW

Integrity Impact NONE

Availability Impact NONE

Scope UNCHANGED

References
Link Resource
https://blog.zulip.com/2021/04/14/zulip-server-3-4/ Vendor Advisory
Configurations

Configuration 1

cpe:2.3:a:zulip:zulip_server:*:*:*:*:*:*:*:*
Information

Published : 2021-04-15 12:15

Updated : 2022-07-12 05:42

NVD link : CVE-2021-30479

Mitre link : CVE-2021-30479

Products Affected
No products.
CWE
CWE-269