GHSA-jp57-4x34-5v94

Suggest an improvement
Source
https://github.com/advisories/GHSA-jp57-4x34-5v94
Import Source
https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2022/05/GHSA-jp57-4x34-5v94/GHSA-jp57-4x34-5v94.json
JSON Data
https://api.test.osv.dev/v1/vulns/GHSA-jp57-4x34-5v94
Aliases
Published
2022-05-24T17:21:04Z
Modified
2025-12-05T22:26:15.116300Z
Severity
  • 4.3 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N CVSS Calculator
Summary
Mattermost Server is vulnerable to webhook and slash command manipulation
Details

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.

Database specific 
{
    "severity": "MODERATE",
    "nvd_published_at": "2020-06-19T19:15:00Z",
    "github_reviewed_at": "2025-12-05T22:00:33Z",
    "cwe_ids": [
        "CWE-20"
    ],
    "github_reviewed": true
}
References

Affected packages

Go

github.com/mattermost/mattermost-server

Package

Name
github.com/mattermost/mattermost-server
View open source insights on deps.dev
Purl
pkg:golang/github.com/mattermost/mattermost-server

Affected ranges

Type
SEMVER
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
4.1.2

github.com/mattermost/mattermost-server

Package

Name
github.com/mattermost/mattermost-server
View open source insights on deps.dev
Purl
pkg:golang/github.com/mattermost/mattermost-server

Affected ranges

Type
SEMVER
Events
Introduced
4.2.0-rc1
Fixed
4.2.1

github.com/mattermost/mattermost-server

Package

Name
github.com/mattermost/mattermost-server
View open source insights on deps.dev
Purl
pkg:golang/github.com/mattermost/mattermost-server

Affected ranges

Type
SEMVER
Events
Introduced
4.3.0-rc1
Fixed
4.3.0