CVE-2023-43754

Permalink previews displayed for posts in archived channels even if users are disallowed to view archived channels

State: Published
Severity: 4.3 Medium
Published: Nov 27, 2023
Updated: Aug 2, 2024
Reserved: Nov 22, 2023

Description

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.

Scores

CVSS	Score	Vector	Source
3.1	4.3 Medium	CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N	Mattermost

Weaknesses

CWE-200 Exposure of Sensitive Information to an Unauthorized Actor

Affected Products

Product	Versions
MattermostMattermost	7.8.12 and earlierAffected 8.1.3 and earlierAffected 9.0.1 and earlierAffected 9.1.0 and earlierAffected 9.0.2Not affected 9.1.1Not affected 7.8.13Not affected 8.1.4Not affected

References

https://mattermost.com/security-updates

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