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Security Advisories: GSA_kwCzR0hTQS1xN3J4LXc2NTYtZndtds4AA4Jc

Mattermost notified all users in the channel when using WebSockets to respond individually

Mattermost fails to scope the WebSocket response around notified users to a each user separately resulting in the WebSocket broadcasting the information about who was notified about a post to everyone else in the channel.

Permalink: https://github.com/advisories/GHSA-q7rx-w656-fwmv
JSON: https://advisories.ecosyste.ms/api/v1/advisories/GSA_kwCzR0hTQS1xN3J4LXc2NTYtZndtds4AA4Jc
Source: GitHub Advisory Database
Origin: Unspecified
Severity: Moderate
Classification: General
Published: 4 months ago
Updated: 4 months ago


CVSS Score: 4.3
CVSS vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N

Identifiers: GHSA-q7rx-w656-fwmv, CVE-2023-48732
References: Repository: https://github.com/mattermost/mattermost
Blast Radius: 9.6

Affected Packages

go:github.com/mattermost/mattermost-server/v6
Dependent packages: 111
Dependent repositories: 168
Downloads:
Affected Version Ranges: <= 8.1.6
Fixed in: 8.1.7
All affected versions: 6.0.0, 6.0.1, 6.0.2, 6.0.3, 6.0.4, 6.1.0, 6.1.1, 6.1.2, 6.1.3, 6.2.0, 6.2.1, 6.2.2, 6.2.3, 6.2.4, 6.2.5, 6.3.0, 6.3.1, 6.3.2, 6.3.3, 6.3.4, 6.3.5, 6.3.6, 6.3.7, 6.3.8, 6.3.9, 6.3.10, 6.4.0, 6.4.1, 6.4.2, 6.4.3, 6.5.0, 6.5.1, 6.5.2, 6.6.0, 6.6.1, 6.6.2, 6.7.0, 6.7.1, 6.7.2
All unaffected versions:
go:github.com/mattermost/mattermost/server/v8
Dependent packages: 2
Dependent repositories: 1
Downloads:
Affected Version Ranges: <= 8.1.6
Fixed in: 8.1.7
All affected versions:
All unaffected versions: