Improper Access Control Affecting github.com/mattermost/mattermost/server/public/model package, versions <9.5.7 >=9.7.0 <9.7.6 >=9.8.0 <9.8.2 >=9.9.0 <9.9.1


Severity

Recommended
0.0
medium
0
10

CVSS assessment made by Snyk's Security Team

    Threat Intelligence

    EPSS
    0.05% (18th percentile)

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  • Snyk ID SNYK-GOLANG-GITHUBCOMMATTERMOSTMATTERMOSTSERVERPUBLICMODEL-7577958
  • published 2 Aug 2024
  • disclosed 1 Aug 2024
  • credit Juho Forsén

How to fix?

Upgrade github.com/mattermost/mattermost/server/public/model to version 9.5.7, 9.7.6, 9.8.2, 9.9.1 or higher.

Overview

Affected versions of this package are vulnerable to Improper Access Control due to improper validation of shared channel synchronization messages. An attacker can add users to arbitrary teams and channels by sending crafted synchronization messages.

CVSS Scores

version 4.0
version 3.1
Expand this section

Snyk

Recommended
6.4 medium
  • Attack Vector (AV)
    Network
  • Attack Complexity (AC)
    Low
  • Attack Requirements (AT)
    None
  • Privileges Required (PR)
    High
  • User Interaction (UI)
    None
  • Confidentiality (VC)
    None
  • Integrity (VI)
    Low
  • Availability (VA)
    None
  • Confidentiality (SC)
    High
  • Integrity (SI)
    High
  • Availability (SA)
    High