{"id":"CVE-2021-30487","details":"In the topic moving API in Zulip Server 3.x before 3.4, organization administrators were able to move messages to streams in other organizations hosted by the same Zulip installation.","modified":"2026-08-07T16:50:15.613658Z","published":"2021-04-15T00:15:13.247Z","references":[{"type":"ADVISORY","url":"https://blog.zulip.com/2021/04/14/zulip-server-3-4/"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/zulip/zulip","events":[{"introduced":"e46bbf18ebb1aef49319a69dcabf319e2a2c939a"},{"fixed":"974b95b0956e6be5ef43683fbfac951d6460c802"}],"database_specific":{"cpe":"cpe:2.3:a:zulip:zulip_server:*:*:*:*:*:*:*:*","extracted_events":[{"introduced":"3.0"},{"fixed":"3.4"}],"source":"CPE_RANGE"}}],"versions":["3.3","3.2","3.1","4.0-dev","3.0","3.0-rc2","3.0-rc1","3.0-dev"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-30487.json"}}],"schema_version":"1.8.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:L/A:N"}]}