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Status published
Medium
CVE-2023-5193
System Role with manage posts permission can read posts of Direct Messages
Vulnerability Description
Mattermost fails to properly check permissions when retrieving a post allowing for a System Role with the permission to manage channels to read the posts of a DM conversation.
Impact Analysis
Refer to official advisory for detailed impact metrics.
Remediation
Ensure systems are updated to the latest vendor-supplied patch levels.
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Credits & Attribution
The following person or organization is credited with identifying this vulnerability, as recorded in the NVD database:
- Pyae Phyo (pyae_phyo)
References
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Affected Vendor
Mattermost
View all reports →Affected Software
Mattermost
Vulnerable Versions:
0, 8.1.0, 8.0.2, 8.1.1, 7.8.10
Timeline
Official Publish:
September 29th, 2023
Last Modified:
September 20th, 2024
Added to House:
July 22nd, 2026
CVSS Vectors
V3:
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N