Vulnerability Instance

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{
    "url": "http://public2.vulnerablecode.io/api/vulnerabilities/84604?format=api",
    "vulnerability_id": "VCID-ewgk-gx1u-ekcz",
    "summary": "Mattermost Plugins versions <=11.3 11.0.3 11.2.2 10.10.11.0 fail to implement authorisation checks on comment block modifications, which allows an authorised attacker with editor permission to modify comments created by other board members.  Mattermost Advisory ID: MMSA-2025-00559",
    "aliases": [
        {
            "alias": "CVE-2026-2461"
        },
        {
            "alias": "GHSA-hf8w-x9h5-5gf9"
        }
    ],
    "fixed_packages": [],
    "affected_packages": [],
    "references": [
        {
            "reference_url": "https://api.first.org/data/v1/epss?cve=CVE-2026-2461",
            "reference_id": "",
            "reference_type": "",
            "scores": [
                {
                    "value": "0.00042",
                    "scoring_system": "epss",
                    "scoring_elements": "0.13077",
                    "published_at": "2026-06-14T12:55:00Z"
                },
                {
                    "value": "0.00042",
                    "scoring_system": "epss",
                    "scoring_elements": "0.12995",
                    "published_at": "2026-06-11T12:55:00Z"
                },
                {
                    "value": "0.00042",
                    "scoring_system": "epss",
                    "scoring_elements": "0.131",
                    "published_at": "2026-06-13T12:55:00Z"
                },
                {
                    "value": "0.00042",
                    "scoring_system": "epss",
                    "scoring_elements": "0.13092",
                    "published_at": "2026-06-12T12:55:00Z"
                }
            ],
            "url": "https://api.first.org/data/v1/epss?cve=CVE-2026-2461"
        },
        {
            "reference_url": "https://github.com/mattermost/mattermost-plugin-boards",
            "reference_id": "",
            "reference_type": "",
            "scores": [
                {
                    "value": "4.3",
                    "scoring_system": "cvssv3.1",
                    "scoring_elements": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N"
                },
                {
                    "value": "MODERATE",
                    "scoring_system": "generic_textual",
                    "scoring_elements": ""
                }
            ],
            "url": "https://github.com/mattermost/mattermost-plugin-boards"
        },
        {
            "reference_url": "https://github.com/mattermost/mattermost-plugin-boards/commit/57c5be5b6ef59d02dd72e35094d1fae8ba6e9619",
            "reference_id": "",
            "reference_type": "",
            "scores": [
                {
                    "value": "4.3",
                    "scoring_system": "cvssv3.1",
                    "scoring_elements": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N"
                },
                {
                    "value": "MODERATE",
                    "scoring_system": "generic_textual",
                    "scoring_elements": ""
                }
            ],
            "url": "https://github.com/mattermost/mattermost-plugin-boards/commit/57c5be5b6ef59d02dd72e35094d1fae8ba6e9619"
        },
        {
            "reference_url": "https://nvd.nist.gov/vuln/detail/CVE-2026-2461",
            "reference_id": "",
            "reference_type": "",
            "scores": [
                {
                    "value": "4.3",
                    "scoring_system": "cvssv3.1",
                    "scoring_elements": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N"
                },
                {
                    "value": "MODERATE",
                    "scoring_system": "generic_textual",
                    "scoring_elements": ""
                }
            ],
            "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-2461"
        },
        {
            "reference_url": "https://mattermost.com/security-updates",
            "reference_id": "security-updates",
            "reference_type": "",
            "scores": [
                {
                    "value": "4.3",
                    "scoring_system": "cvssv3.1",
                    "scoring_elements": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N"
                },
                {
                    "value": "MODERATE",
                    "scoring_system": "generic_textual",
                    "scoring_elements": ""
                },
                {
                    "value": "Track",
                    "scoring_system": "ssvc",
                    "scoring_elements": "SSVCv2/E:N/A:N/T:P/P:M/B:A/M:M/D:T/2026-03-16T13:42:41Z/"
                }
            ],
            "url": "https://mattermost.com/security-updates"
        }
    ],
    "weaknesses": [
        {
            "cwe_id": 639,
            "name": "Authorization Bypass Through User-Controlled Key",
            "description": "The system's authorization functionality does not prevent one user from gaining access to another user's data or record by modifying the key value identifying the data."
        }
    ],
    "exploits": [],
    "severity_range_score": "4.0 - 6.9",
    "exploitability": null,
    "weighted_severity": null,
    "risk_score": null,
    "resource_url": "http://public2.vulnerablecode.io/vulnerabilities/VCID-ewgk-gx1u-ekcz"
}