MA
Product
Mattermost
by Mattermost · last CVE Oct 28, 2026
405
CVEs
0
On KEV
9.9
Max CVSS
23
New 30D
Severity mix
Critical 8High 48Medium 306Low 43
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CVECVSSEPSSPublishedSummary · affected versions
CVE-2024-39353
2.7
0%
Jul 3
RemoteClusterFrame payloads are audit logged in full
Affected: 9.8.0; 9.5.0 through 9.5.5
CVE-2023-5193
2.7
1%
Sep 29
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
Affected: 7.0.0 before 7.8.10; 8.0.0 before 8.0.2; 8.1.0 before 8.1.1
CVE-2023-5159
2.7
0%
Sep 29
Mattermost fails to properly verify the permissions when managing/updating a bot allowing a User Manager role with user edit permissions to manage/update bots
Affected: 7.0.0 before 7.8.10; 8.0.0 before 8.1.1
CVE-2026-75588
2.6
0%
Sep 17
Mattermost Desktop App plugin popout scheme validation bypass
Affected: through 6.2.2
CVE-2026-3109
2.2
0%
Mar 26
Missing timestamp validation in Zoom webhook handler
Affected: through 10.11.11
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