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Description

Mattermost versions 11.1.x <= 11.1.2, 10.11.x <= 10.11.9, 11.2.x <= 11.2.1 and Mattermost Plugin Zoom versions <=1.11.0 fail to validate the authenticated user when processing {{/plugins/zoom/api/v1/channel-preference}}, which allows any logged-in user to change Zoom meeting restrictions for arbitrary channels via crafted API requests.. Mattermost Advisory ID: MMSA-2025-00558

PUBLISHED Reserved 2026-01-15 | Published 2026-02-16 | Updated 2026-02-17 | 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

11.1.0 (semver)
affected

10.11.0 (semver)
affected

11.2.0 (semver)
affected

11.3.0
unaffected

11.1.3
unaffected

10.11.10
unaffected

11.2.2
unaffected

Credits

daw10 finder

References

mattermost.com/security-updates (MMSA-2025-00558) vendor-advisory

cve.org (CVE-2026-0997)

nvd.nist.gov (CVE-2026-0997)

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