CVE-2023-1775

Unsanitized events sent over Websocket to regular users in a High Availability environment

State: Published
Severity: 4.3 Medium
Published: Mar 31, 2023
Updated: Dec 6, 2024
Reserved: Mar 31, 2023

Description

When running in a High Availability configuration, Mattermost fails to sanitize some of the user_updated and post_deleted events broadcast to all users, leading to disclosure of sensitive information to some of the users with currently connected Websocket clients.

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	3.3.0 through 7.7.1Affected 3.3.0 through 7.1.5Affected 3.3.0 to before 7.8.0Affected 7.8.0Not affected 7.7.2Not affected 7.1.6Not affected

References

https://mattermost.com/security-updates/

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