CVE-2025-20033

Description

Mattermost versions 10.2.0, 9.11.x <= 9.11.5, 10.0.x <= 10.0.3, 10.1.x <= 10.1.3 fail to properly validate post types, which allows attackers to deny service to users with the sysconsole_read_plugins permission via creating a post with the custom_pl_notification type and specific props.

Reserved 2025-01-08 | Published 2025-01-09 | Updated 2025-01-09 | Assigner Mattermost

Problem types

CWE-1287: Improper Validation of Specified Type of Input

Product status

Default status
unaffected

10.2.0
affected

9.11.0
affected

10.0.0
affected

10.1.0
affected

10.3.0
unaffected

10.2.1
unaffected

9.11.6
unaffected

10.0.4
unaffected

10.1.4
unaffected

Credits

c0rydoras (c0rydoras) finder

References

mattermost.com/security-updates

cve.org (CVE-2025-20033)

nvd.nist.gov (CVE-2025-20033)

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