CVE-2021-30478

2021-04-1423:47:27

mitre

www.cve.org

zulip server

permission issue

messages impersonation

system bot

AI Score

4.9

Confidence

High

EPSS

0.001

Percentile

22.7%

JSON

An issue was discovered in Zulip Server before 3.4. A bug in the implementation of the can_forge_sender permission (previously is_api_super_user) resulted in users with this permission being able to send messages appearing as if sent by a system bot, including to other organizations hosted by the same Zulip installation.

References

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