CVE-2021-30479

2021-04-1423:48:38

mitre

www.cve.org

zulip server

bug

api

guest users

message traffic

public streams

organization members

AI Score

5.6

Confidence

High

EPSS

0.001

Percentile

35.9%

JSON

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.

References

blog.zulip.com/2021/04/14/zulip-server-3-4/