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CVE-2023-5194

4.3 mediumEPSS 0.4%

Medium (4.3) in mattermost mattermost. EPSS 0.4% chance of exploitation in the next 30 days. Fixed in github.com/mattermost/mattermost/server/v8 8.0.2, 8.1.1.

Mattermost fails to properly validate permissions when demoting and deactivating a user allowing for a system/user manager to demote / deactivate another manager

Severity

CVSS 3.1

4.3 medium
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N
EPSS
0.4% chance of exploitation in the next 30 days; higher than 34% of CVEs (scores of 2026-10-31)
CWE
CWE-863
Published
Modified
Record from
the NVD, synced

Affected

Packages (OSV)

AdvisoryEcosystemPackageAffectedFixed in
GHSA-h69v-mvh9-hfrqGogithub.com/mattermost/mattermost/server/v8>=8.1.0 <8.1.18.1.1
GHSA-h69v-mvh9-hfrqGogithub.com/mattermost/mattermost/server/v8>=8.0.0 <8.0.28.0.2
GHSA-h69v-mvh9-hfrqGogithub.com/mattermost/mattermost-server/v6<7.8.107.8.10

References

Check your stackJSON