CVE-2021-30479
Description
An issue was discovered in Zulip Server before 3.4. A bug in the implementation of the all_public_streams API feature resulted in guest users being able to receive message traffic to public streams that should have been only accessible to members of the organization.
CvssV3 impact
BaseSeverity | MEDIUM |
ConfidentialityImpact | LOW |
AttackComplexity | LOW |
Scope | UNCHANGED |
AttackVector | NETWORK |
AvailabilityImpact | NONE |
IntegrityImpact | NONE |
PrivilegesRequired | NONE |
BaseScore | 5.3 |
VectorString | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N |
Version | 3.1 |
UserInteraction | NONE |
CvssV2 impact
AccessComplexity | LOW |
ConfidentialityImpact | PARTIAL |
AvailabilityImpact | NONE |
IntegrityImpact | NONE |
BaseScore | 5 |
VectorString | AV:N/AC:L/Au:N/C:P/I:N/A:N |
Version | 2.0 |
AccessVector | NETWORK |
Authentication | NONE |