CVE-2025-12756Published

Insecure Direct Object Reference in Mattermost Boards Plugin Enables Unauthorised Comment Deletion

cve-program · CVE-2025-12756

Published

Mattermost

Vendor product

Original vendor version evidence · not evaluated as a NuGet range

{
                    "defaultStatus": "unaffected",
                    "product": "Mattermost",
                    "vendor": "Mattermost",
                    "versions": [
                        {
                            "lessThanOrEqual": "11.0.2",
                            "status": "affected",
                            "version": "11.0.0",
                            "versionType": "semver"
                        },
                        {
                            "lessThanOrEqual": "10.12.1",
                            "status": "affected",
                            "version": "10.12.0",
                            "versionType": "semver"
                        },
                        {
                            "lessThanOrEqual": "10.11.4",
                            "status": "affected",
                            "version": "10.11.0",
                            "versionType": "semver"
                        },
                        {
                            "lessThanOrEqual": "10.5.12",
                            "status": "affected",
                            "version": "10.5.0",
                            "versionType": "semver"
                        },
                        {
                            "version": "11.1.0",
                            "status": "unaffected"
                        },
                        {
                            "version": "11.0.3",
                            "status": "unaffected"
                        },
                        {
                            "version": "10.12.2",
                            "status": "unaffected"
                        },
                        {
                            "version": "10.11.5",
                            "status": "unaffected"
                        },
                        {
                            "version": "10.5.13",
                            "status": "unaffected"
                        }
                    ]
                }

Original source record · Cite this exact observation · Complete original publisher JSON

euvd · EUVD-2025-200087

Published

EUVD source date text has no stated timezone and is retained without inventing a UTC instant. Related bulletin membership is not an alias, common cause or applicability claim. A missing vector with a zero score is treated as unrated. Complete vendor/product and underlying source evidence remains in the original JSON.

Original publisher date fields

datePublished: Dec 1, 2025, 7:51:46 PM

dateUpdated: Dec 1, 2025, 8:02:24 PM

No normalized affected-package data is projected for this source revision. The original publisher record may contain additional product and version evidence; this does not establish that a package is unaffected.

Original source record · Cite this exact observation · Complete original publisher JSON

nvd · CVE-2025-12756

Published

NVD analysis and CPE criteria are source context, not proof that a package or your environment is affected. Complete affected data, logical configurations and SSVC are retained in the original JSON.

Source analysis status: Analyzed

Weakness classifications: CWE-863

Original publisher date fields

published: 2025-12-01T20:15:49.147

lastModified: 2026-10-19T13:10:00.110

1 source CPE criteria · context only

cpe:2.3:a:mattermost:mattermost_server:*:*:*:*:*:*:*:*

The original JSON retains the logical configuration operators, exclusions and version bounds.

Original source record · Cite this exact observation · Complete original publisher JSON

osv · GHSA-p6gj-jc38-x2m7

Published

github.com/mattermost/mattermost/server/v8

SEMVER · introduced 0 → last_affected 8.0.0-20251013062617-7977e7e6dae3

github.com/mattermost/mattermost

SEMVER · introduced 10.11.0 → last_affected 10.11.4

github.com/mattermost/mattermost

SEMVER · introduced 10.12.0 → last_affected 10.12.1

github.com/mattermost/mattermost

SEMVER · introduced 10.5.0 → last_affected 10.5.12

github.com/mattermost/mattermost

SEMVER · introduced 11.0.0 → last_affected 11.0.2

Original source record · Cite this exact observation · Complete original publisher JSON

osv · GO-2025-4172

Published

github.com/mattermost/mattermost

SEMVER · introduced 0

github.com/mattermost/mattermost

SEMVER · introduced 10.5.0+incompatible

github.com/mattermost/mattermost

SEMVER · introduced 10.11.0+incompatible

github.com/mattermost/mattermost

SEMVER · introduced 10.12.0+incompatible

github.com/mattermost/mattermost-server

SEMVER · introduced 0

github.com/mattermost/mattermost-server/v5

SEMVER · introduced 0

github.com/mattermost/mattermost-server/v6

SEMVER · introduced 0

github.com/mattermost/mattermost/server/v8

SEMVER · introduced 0

Original source record · Cite this exact observation · Complete original publisher JSON