CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
AI Score
Confidence
High
EPSS
Percentile
55.9%
Zulip is an open source team chat tool. Due to an incorrect authorization check in Zulip Server 5.4 and earlier, a member of an organization could craft an API call that grants organization administrator privileges to one of their bots. The vulnerability is fixed in Zulip Server 5.5. Members who donβt own any bots, and lack permission to create them, canβt exploit the vulnerability. As a workaround for the vulnerability, an organization administrator can restrict the Who can create bots
permission to administrators only, and change the ownership of existing bots.
[
{
"product": "zulip",
"vendor": "zulip",
"versions": [
{
"status": "affected",
"version": "< 5.5"
}
]
}
]