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CVE-2024-29977

Date: August 1, 2024

Mattermost versions 9.9.x <= 9.9.0, 9.5.x <= 9.5.6 fail to properly validate synced reactions, when shared channels are enabled, which allows a malicious remote to create arbitrary reactions on arbitrary posts

Language: Go

Severity Score

Related Resources (6)

https://github.com/advisories/GHSA-jq3g-xqpx-37x3
https://github.com/mattermost/mattermost
https://nvd.nist.gov/vuln/detail/CVE-2024-29977
https://pkg.go.dev/vuln/GO-2024-3030
https://mattermost.com/security-updates
https://www.mend.io/vulnerability-database/CVE-2024-29977

Severity Score

Weakness Type (CWE)

Improper Access Control

CWE-284

CVSS v3.1

Base Score:
Attack Vector (AV): NETWORK
Attack Complexity (AC): LOW
Privileges Required (PR): HIGH
User Interaction (UI): NONE
Scope (S): UNCHANGED
Confidentiality (C): NONE
Integrity (I): LOW
Availability (A): NONE

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