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Description

Mattermost versions 10.7.x <= 10.7.0, 10.6.x <= 10.6.2, 10.5.x <= 10.5.3, 9.11.x <= 9.11.12 fails to properly invalidate personal access tokens upon user deactivation, allowing deactivated users to maintain full system access by exploiting access token validation flaws via continued usage of previously issued tokens.

PUBLISHED Reserved 2025-04-03 | Published 2025-05-30 | Updated 2025-05-30 | Assigner Mattermost




MEDIUM: 5.4CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N

Problem types

CWE-303: Incorrect Implementation of Authentication Algorithm

Product status

Default status
unaffected

10.7.0 (semver)
affected

10.6.0 (semver)
affected

10.5.0 (semver)
affected

9.11.0 (semver)
affected

10.8.0
unaffected

10.7.1
unaffected

10.6.3
unaffected

10.5.4
unaffected

9.11.13
unaffected

Credits

eAhmed finder

References

mattermost.com/security-updates

cve.org (CVE-2025-3230)

nvd.nist.gov (CVE-2025-3230)

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