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Description

Mattermost versions 10.6.x <= 10.6.1, 10.5.x <= 10.5.2, 10.4.x <= 10.4.4, 9.11.x <= 9.11.11 fail to check the correct permissions which allows authenticated users who only have permission to invite non-guest users to a team to add guest users to that team via the API to add a single user to a team.

PUBLISHED Reserved 2025-04-08 | Published 2025-05-15 | Updated 2025-05-15 | Assigner Mattermost




MEDIUM: 4.3CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N

Problem types

CWE-863: Incorrect Authorization

Product status

Default status
unaffected

10.6.0 (semver)
affected

10.5.0 (semver)
affected

10.4.0 (semver)
affected

9.11.0 (semver)
affected

10.7.0
unaffected

10.6.2
unaffected

10.5.3
unaffected

10.4.5
unaffected

9.11.12
unaffected

Credits

0x7oda7123 finder

References

mattermost.com/security-updates

cve.org (CVE-2025-3446)

nvd.nist.gov (CVE-2025-3446)

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