Skip to content

x/vulndb: potential Go vuln in github.com/mattermost/mattermost-server: GHSA-jp57-4x34-5v94 #4201

New issue
New issue
Open
Open
x/vulndb: potential Go vuln in github.com/mattermost/mattermost-server: GHSA-jp57-4x34-5v94#4201
Labels
NeedsTriage
@GoVulnBot

Description

@GoVulnBot
GoVulnBot
opened on Dec 5, 2025

Advisory GHSA-jp57-4x34-5v94 references a vulnerability in the following Go modules:

Module
github.com/mattermost/mattermost-server

Description:
An issue was discovered in Mattermost Server before 4.3.0, 4.2.1, and 4.1.2. An attacker could create fictive system-message posts via webhooks and slash commands, in the v3 or v4 REST API.

References:

Cross references:

See doc/quickstart.md for instructions on how to triage this report.

id: GO-ID-PENDING
modules:
    - module: github.com/mattermost/mattermost-server
      versions:
        - fixed: 4.1.2+incompatible
        - introduced: 4.2.0-rc1+incompatible
        - fixed: 4.2.1+incompatible
        - introduced: 4.3.0-rc1+incompatible
        - fixed: 4.3.0+incompatible
      vulnerable_at: 4.3.0-rc4+incompatible
summary: Mattermost Server is vulnerable to webhook and slash command manipulation in github.com/mattermost/mattermost-server
cves:
    - CVE-2017-18889
ghsas:
    - GHSA-jp57-4x34-5v94
references:
    - advisory: https://github.com/advisories/GHSA-jp57-4x34-5v94
    - advisory: https://nvd.nist.gov/vuln/detail/CVE-2017-18889
    - web: https://mattermost.com/security-updates
source:
    id: GHSA-jp57-4x34-5v94
    created: 2025-12-05T22:01:16.10319312Z
review_status: UNREVIEWED

Metadata

Metadata

Assignees

No one assigned

    Labels

    NeedsTriage

    Type

    No type

    Projects

    No projects

    Milestone

    No milestone

    Relationships

    None yet

    Development

    No branches or pull requests

    Issue actions