CVE-2021-30477
Published Apr 15, 2021
Last updated 2 years ago
Overview
- Description
- An issue was discovered in Zulip Server before 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.
- Source
- cve@mitre.org
- NVD status
- Analyzed
Social media
- Hype score
- Not currently trending
Risk scores
CVSS 3.1
- Type
- Primary
- Base score
- 4.3
- Impact score
- 1.4
- Exploitability score
- 2.8
- Vector string
- CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N
- Severity
- MEDIUM
CVSS 2.0
- Type
- Primary
- Base score
- 4
- Impact score
- 2.9
- Exploitability score
- 8
- Vector string
- AV:N/AC:L/Au:S/C:N/I:P/A:N
Weaknesses
- nvd@nist.gov
- NVD-CWE-noinfo
Configurations
[
{
"nodes": [
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:a:zulip:zulip_server:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "09622761-7CB9-4FD7-82B0-B80CD94D296D",
"versionEndExcluding": "3.4"
}
],
"operator": "OR"
}
]
}
]