VulnerabilityModified
CVE-2021-30478
An issue was discovered in Zulip Server before 3.4.
MEDIUM 4.3EPSS 0.57%
Does this matter?
Lower severity and a low EPSS score (0.57%). Track it; it rarely justifies an emergency change on its own.
Description
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.
- CVSS 3.1
- 4.3 MEDIUMCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N
- EPSS
- 0.57% probability · 46th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-269
- Affected
- zulip/zulip server
- Source
- cve@mitre.org
References
- https://blog.zulip.com/2021/04/14/zulip-server-3-4/Release Notes, Vendor Advisory
- https://blog.zulip.com/2021/04/14/zulip-server-3-4/Release Notes, Vendor Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.