CVE-2025-41423

Description

Mattermost versions 10.4.x <= 10.4.2, 10.5.x <= 10.5.0, 9.11.x <= 9.11.10 fail to properly validate permissions for the API endpoint /plugins/playbooks/api/v0/signal/keywords/ignore-thread, allowing any user or attacker to delete posts containing actions created by the Playbooks bot, even without channel access or appropriate permissions.

Reserved 2025-04-22 | Published 2025-04-24 | Updated 2025-04-24 | Assigner Mattermost

Problem types

CWE-863: Incorrect Authorization

Product status

Default status
unaffected

10.4.0
affected

10.5.0
affected

9.11.0
affected

10.6.0
unaffected

10.4.3
unaffected

10.5.1
unaffected

9.11.11
unaffected

Credits

Tobias Weisshaar (kun_19) finder

References

mattermost.com/security-updates

cve.org (CVE-2025-41423)

nvd.nist.gov (CVE-2025-41423)

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