GHSA-vg67-chm7-8m3j

Suggest an improvement
Source
https://github.com/advisories/GHSA-vg67-chm7-8m3j
Import Source
https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2024/08/GHSA-vg67-chm7-8m3j/GHSA-vg67-chm7-8m3j.json
JSON Data
https://api.test.osv.dev/v1/vulns/GHSA-vg67-chm7-8m3j
Aliases
Published
2024-08-01T15:32:23Z
Modified
2025-07-09T17:51:06Z
Severity
  • 5.5 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:L CVSS Calculator
  • 7.0 (High) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:N/VI:H/VA:L/SC:N/SI:N/SA:N CVSS Calculator
Summary
Mattermost allows remote actor to create/update/delete posts in arbitrary channels
Details

Mattermost versions 9.9.x <= 9.9.0, 9.5.x <= 9.5.6, 9.7.x <= 9.7.5, 9.8.x <= 9.8.1 fail to properly validate synced posts, when shared channels are enabled,  which allows a malicious remote to create/update/delete arbitrary posts in arbitrary channels

Database specific 
{
    "nvd_published_at": "2024-08-01T15:15:13Z",
    "cwe_ids": [
        "CWE-284"
    ],
    "severity": "HIGH",
    "github_reviewed_at": "2024-08-02T01:19:26Z",
    "github_reviewed": true
}
References

Affected packages

Go

github.com/mattermost/mattermost/server/v8

Package

Name
github.com/mattermost/mattermost/server/v8
View open source insights on deps.dev
Purl
pkg:golang/github.com/mattermost/mattermost/server/v8

Affected ranges

Type
SEMVER
Events
Introduced
9.5.0
Fixed
9.5.7

github.com/mattermost/mattermost/server/v8

Package

Name
github.com/mattermost/mattermost/server/v8
View open source insights on deps.dev
Purl
pkg:golang/github.com/mattermost/mattermost/server/v8

Affected ranges

Type
SEMVER
Events
Introduced
9.7.0
Fixed
9.7.6

github.com/mattermost/mattermost/server/v8

Package

Name
github.com/mattermost/mattermost/server/v8
View open source insights on deps.dev
Purl
pkg:golang/github.com/mattermost/mattermost/server/v8

Affected ranges

Type
SEMVER
Events
Introduced
9.8.0
Fixed
9.8.2

github.com/mattermost/mattermost/server/v8

Package

Name
github.com/mattermost/mattermost/server/v8
View open source insights on deps.dev
Purl
pkg:golang/github.com/mattermost/mattermost/server/v8

Affected ranges

Type
SEMVER
Events
Introduced
9.9.0
Fixed
9.9.1

Affected versions

9.*

9.9.0

github.com/mattermost/mattermost/server/v8

Package

Name
github.com/mattermost/mattermost/server/v8
View open source insights on deps.dev
Purl
pkg:golang/github.com/mattermost/mattermost/server/v8

Affected ranges

Type
SEMVER
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
8.0.0-20240619142046-8181a9ddffc0

github.com/mattermost/mattermost

Package

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

Affected ranges

Type
SEMVER
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
5.3.2-0.20240619142046-8181a9ddffc0