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Security Advisories: GSA_kwCzR0hTQS1qanI3LTM3MnItY3g3eM4AA3XY

Mattermost Exposure of Sensitive Information to an Unauthorized Actor vulnerability

Mattermost fails to check whether the "Allow users to view archived channels" setting is enabled during permalink previews display, allowing members to view permalink previews of archived channels even if the "Allow users to view archived channels" setting is disabled.

Permalink: https://github.com/advisories/GHSA-jjr7-372r-cx7x
JSON: https://advisories.ecosyste.ms/api/v1/advisories/GSA_kwCzR0hTQS1qanI3LTM3MnItY3g3eM4AA3XY
Source: GitHub Advisory Database
Origin: Unspecified
Severity: Moderate
Classification: General
Published: 5 months ago
Updated: 5 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-jjr7-372r-cx7x, CVE-2023-43754
References:

Blast Radius: 9.6

Affected Packages

go:github.com/mattermost/mattermost-server/v6

Dependent packages: 111
Dependent repositories: 168
Downloads:
Affected Version Ranges: < 7.8.13
Fixed in: 7.8.13
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: < 8.1.4, >= 9.0.0, < 9.0.2, >= 9.1.0, < 9.1.1
Fixed in: 8.1.4, 9.0.2, 9.1.1
All affected versions:
All unaffected versions: