Improper Validation of Specified Type of Input Affecting github.com/mattermost/mattermost/server/channels/app package, versions >=9.11.0 <9.11.6>=10.0.0 <10.0.4>=10.1.0-rc1 <10.1.4>=10.2.0 <10.2.1


Severity

Recommended
0.0
medium
0
10

CVSS assessment made by Snyk's Security Team. Learn more

Threat Intelligence

EPSS
0.04% (12th percentile)

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  • Snyk IDSNYK-GOLANG-GITHUBCOMMATTERMOSTMATTERMOSTSERVERCHANNELSAPP-8611146
  • published10 Jan 2025
  • disclosed9 Jan 2025
  • creditc0rydoras

Introduced: 9 Jan 2025

NewCVE-2025-20033  (opens in a new tab)
CWE-1287  (opens in a new tab)

How to fix?

Upgrade github.com/mattermost/mattermost/server/channels/app to version 9.11.6, 10.0.4, 10.1.4, 10.2.1 or higher.

Overview

github.com/mattermost/mattermost/server/channels/app is a private-cloud Slack alternative

Affected versions of this package are vulnerable to Improper Validation of Specified Type of Input. An attacker can deny service by creating a post with the custom_pl_notification type and specific props.

Note:

This is only exploitable if the user has the sysconsole_read_plugins permission.

CVSS Scores

version 4.0
version 3.1