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4.3
CVSSv3

CVE-2021-30477

Published: 15/04/2021 Updated: 12/07/2022
CVSS v2 Base Score: 4 | Impact Score: 2.9 | Exploitability Score: 8
CVSS v3 Base Score: 4.3 | Impact Score: 1.4 | Exploitability Score: 2.8
VMScore: 356
Vector: AV:N/AC:L/Au:S/C:N/I:P/A:N
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Vulnerability Summary

An issue exists in Zulip Server prior to 3.4. A bug in the implementation of replies to messages sent by outgoing webhooks to private streams meant that an outgoing webhook bot could be used to send messages to private streams that the user was not intended to be able to send messages to.

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zulip zulip server

References

NVD-CWE-noinfohttps://blog.zulip.com/2021/04/14/zulip-server-3-4/https://nvd.nist.gov
CVSSv3
CVSSv2
CVSSv3
VMScore
Recommendations:
blind SQL injectionSSRFbuffer overflowCVE-2023-28952CVE-2023-41822CVE-2024-27956CVE-2023-7028CVE-2024-34447CVE-2024-34460
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