- Description
- Mattermost versions 11.7.x <= 11.7.0, 10.11.x <= 10.11.17 fail to validate bot targets when demoting users to guests which allows a lower-privileged administrator to degrade arbitrary bot accounts via the standard demote-user API.. Mattermost Advisory ID: MMSA-2026-00669
- Source
- responsibledisclosure@mattermost.com
- NVD status
- Analyzed
- Products
- mattermost_server
CVSS 3.1
- Type
- Secondary
- Base score
- 3.8
- Impact score
- 2.5
- Exploitability score
- 1.2
- Vector string
- CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:L/A:L
- Severity
- LOW
- responsibledisclosure@mattermost.com
- CWE-863
- Hype score
- Not currently trending
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"versionEndExcluding": "10.11.18",
"versionStartIncluding": "10.11.0",
"vulnerable": true
},
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]