{
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    "dataVersion": "5.1",
    "cveMetadata": {
        "cveId": "CVE-2024-37903",
        "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "state": "PUBLISHED",
        "assignerShortName": "GitHub_M",
        "dateReserved": "2024-06-10T19:54:41.362Z",
        "datePublished": "2024-07-05T17:24:49.213Z",
        "dateUpdated": "2024-08-02T04:04:23.423Z"
    },
    "containers": {
        "cna": {
            "title": "Mastodon has improper authorship check on audience extension for existing posts",
            "problemTypes": [
                {
                    "descriptions": [
                        {
                            "cweId": "CWE-862",
                            "lang": "en",
                            "description": "CWE-862: Missing Authorization",
                            "type": "CWE"
                        }
                    ]
                }
            ],
            "metrics": [
                {
                    "cvssV3_1": {
                        "attackComplexity": "LOW",
                        "attackVector": "NETWORK",
                        "availabilityImpact": "NONE",
                        "baseScore": 8.2,
                        "baseSeverity": "HIGH",
                        "confidentialityImpact": "HIGH",
                        "integrityImpact": "LOW",
                        "privilegesRequired": "NONE",
                        "scope": "UNCHANGED",
                        "userInteraction": "NONE",
                        "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N",
                        "version": "3.1"
                    }
                }
            ],
            "references": [
                {
                    "name": "https://github.com/mastodon/mastodon/security/advisories/GHSA-xjvf-fm67-4qc3",
                    "tags": [
                        "x_refsource_CONFIRM"
                    ],
                    "url": "https://github.com/mastodon/mastodon/security/advisories/GHSA-xjvf-fm67-4qc3"
                },
                {
                    "name": "https://github.com/mastodon/mastodon/commit/a1c7aae28aecf06659c5b18cfa131b37cd1512a3",
                    "tags": [
                        "x_refsource_MISC"
                    ],
                    "url": "https://github.com/mastodon/mastodon/commit/a1c7aae28aecf06659c5b18cfa131b37cd1512a3"
                },
                {
                    "name": "https://github.com/mastodon/mastodon/commit/d4bf22b632ea8b1174375c4966a6768ab66393b6",
                    "tags": [
                        "x_refsource_MISC"
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                    "url": "https://github.com/mastodon/mastodon/commit/d4bf22b632ea8b1174375c4966a6768ab66393b6"
                },
                {
                    "name": "https://github.com/mastodon/mastodon/releases/tag/v4.1.18",
                    "tags": [
                        "x_refsource_MISC"
                    ],
                    "url": "https://github.com/mastodon/mastodon/releases/tag/v4.1.18"
                },
                {
                    "name": "https://github.com/mastodon/mastodon/releases/tag/v4.2.10",
                    "tags": [
                        "x_refsource_MISC"
                    ],
                    "url": "https://github.com/mastodon/mastodon/releases/tag/v4.2.10"
                }
            ],
            "affected": [
                {
                    "vendor": "mastodon",
                    "product": "mastodon",
                    "versions": [
                        {
                            "version": ">= 2.6.0, < 4.1.18",
                            "status": "affected"
                        },
                        {
                            "version": ">= 4.2.0, < 4.2.10",
                            "status": "affected"
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            ],
            "providerMetadata": {
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                "shortName": "GitHub_M",
                "dateUpdated": "2024-07-05T17:24:49.213Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "Mastodon is a self-hosted, federated microblogging platform. Starting in version 2.6.0 and prior to versions 4.1.18 and 4.2.10, by crafting specific activities, an attacker can extend the audience of a post they do not own to other Mastodon users on a target server, thus gaining access to the contents of a post not intended for them. Versions 4.1.18 and 4.2.10 contain a patch for this issue."
                }
            ],
            "source": {
                "advisory": "GHSA-xjvf-fm67-4qc3",
                "discovery": "UNKNOWN"
            }
        },
        "adp": [
            {
                "affected": [
                    {
                        "vendor": "joinmastodon",
                        "product": "mastodon",
                        "cpes": [
                            "cpe:2.3:a:joinmastodon:mastodon:2.6.0:*:*:*:*:*:*:*"
                        ],
                        "defaultStatus": "unknown",
                        "versions": [
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                                "version": "2.6.0",
                                "status": "affected",
                                "lessThan": "4.1.18",
                                "versionType": "custom"
                            }
                        ]
                    },
                    {
                        "vendor": "joinmastodon",
                        "product": "mastodon",
                        "cpes": [
                            "cpe:2.3:a:joinmastodon:mastodon:4.2.0:*:*:*:*:*:*:*"
                        ],
                        "defaultStatus": "unknown",
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                            {
                                "version": "4.2.0",
                                "status": "affected",
                                "lessThan": "4.2.10",
                                "versionType": "custom"
                            }
                        ]
                    }
                ],
                "metrics": [
                    {
                        "other": {
                            "type": "ssvc",
                            "content": {
                                "timestamp": "2024-07-31T19:04:59.386414Z",
                                "id": "CVE-2024-37903",
                                "options": [
                                    {
                                        "Exploitation": "none"
                                    },
                                    {
                                        "Automatable": "yes"
                                    },
                                    {
                                        "Technical Impact": "partial"
                                    }
                                ],
                                "role": "CISA Coordinator",
                                "version": "2.0.3"
                            }
                        }
                    }
                ],
                "title": "CISA ADP Vulnrichment",
                "providerMetadata": {
                    "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
                    "shortName": "CISA-ADP",
                    "dateUpdated": "2024-07-31T19:17:25.833Z"
                }
            },
            {
                "providerMetadata": {
                    "orgId": "af854a3a-2127-422b-91ae-364da2661108",
                    "shortName": "CVE",
                    "dateUpdated": "2024-08-02T04:04:23.423Z"
                },
                "title": "CVE Program Container",
                "references": [
                    {
                        "name": "https://github.com/mastodon/mastodon/security/advisories/GHSA-xjvf-fm67-4qc3",
                        "tags": [
                            "x_refsource_CONFIRM",
                            "x_transferred"
                        ],
                        "url": "https://github.com/mastodon/mastodon/security/advisories/GHSA-xjvf-fm67-4qc3"
                    },
                    {
                        "name": "https://github.com/mastodon/mastodon/commit/a1c7aae28aecf06659c5b18cfa131b37cd1512a3",
                        "tags": [
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                            "x_transferred"
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                        "url": "https://github.com/mastodon/mastodon/commit/a1c7aae28aecf06659c5b18cfa131b37cd1512a3"
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                        "name": "https://github.com/mastodon/mastodon/commit/d4bf22b632ea8b1174375c4966a6768ab66393b6",
                        "tags": [
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                            "x_transferred"
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                        "url": "https://github.com/mastodon/mastodon/commit/d4bf22b632ea8b1174375c4966a6768ab66393b6"
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                    {
                        "name": "https://github.com/mastodon/mastodon/releases/tag/v4.1.18",
                        "tags": [
                            "x_refsource_MISC",
                            "x_transferred"
                        ],
                        "url": "https://github.com/mastodon/mastodon/releases/tag/v4.1.18"
                    },
                    {
                        "name": "https://github.com/mastodon/mastodon/releases/tag/v4.2.10",
                        "tags": [
                            "x_refsource_MISC",
                            "x_transferred"
                        ],
                        "url": "https://github.com/mastodon/mastodon/releases/tag/v4.2.10"
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        ]
    }
}