{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2026-84302",
        "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "state": "PUBLISHED",
        "assignerShortName": "GitHub_M",
        "dateReserved": "2026-09-01T16:17:43.078Z",
        "datePublished": "2026-09-24T16:49:56.499Z",
        "dateUpdated": "2026-09-24T17:04:51.257Z"
    },
    "containers": {
        "cna": {
            "title": "Discourse: Non-participant moderators can read, edit, and delete PM content through Discourse AI reviewables",
            "problemTypes": [
                {
                    "descriptions": [
                        {
                            "cweId": "CWE-862",
                            "lang": "en",
                            "description": "CWE-862: Missing Authorization",
                            "type": "CWE"
                        }
                    ]
                }
            ],
            "metrics": [
                {
                    "cvssV3_1": {
                        "attackComplexity": "HIGH",
                        "attackVector": "NETWORK",
                        "availabilityImpact": "NONE",
                        "baseScore": 4.2,
                        "baseSeverity": "MEDIUM",
                        "confidentialityImpact": "HIGH",
                        "integrityImpact": "NONE",
                        "privilegesRequired": "HIGH",
                        "scope": "UNCHANGED",
                        "userInteraction": "REQUIRED",
                        "vectorString": "CVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:U/C:H/I:N/A:N",
                        "version": "3.1"
                    }
                }
            ],
            "references": [
                {
                    "name": "https://github.com/discourse/discourse/security/advisories/GHSA-3rx9-fqgh-wfpc",
                    "tags": [
                        "x_refsource_CONFIRM"
                    ],
                    "url": "https://github.com/discourse/discourse/security/advisories/GHSA-3rx9-fqgh-wfpc"
                },
                {
                    "name": "https://github.com/discourse/discourse/pull/42091",
                    "tags": [
                        "x_refsource_MISC"
                    ],
                    "url": "https://github.com/discourse/discourse/pull/42091"
                },
                {
                    "name": "https://github.com/discourse/discourse/commit/1566d04524c01472375944bbf7b198dd09a99427",
                    "tags": [
                        "x_refsource_MISC"
                    ],
                    "url": "https://github.com/discourse/discourse/commit/1566d04524c01472375944bbf7b198dd09a99427"
                },
                {
                    "name": "https://github.com/discourse/discourse/commit/23488b72a200228e805c4e6d970fbad216d328c5",
                    "tags": [
                        "x_refsource_MISC"
                    ],
                    "url": "https://github.com/discourse/discourse/commit/23488b72a200228e805c4e6d970fbad216d328c5"
                },
                {
                    "name": "https://github.com/discourse/discourse/commit/38d10c0e5d1b76540d2860455e0290f8e975c9fd",
                    "tags": [
                        "x_refsource_MISC"
                    ],
                    "url": "https://github.com/discourse/discourse/commit/38d10c0e5d1b76540d2860455e0290f8e975c9fd"
                },
                {
                    "name": "https://github.com/discourse/discourse/commit/b323702d87cd82c327c116d9566477f3c4f9635f",
                    "tags": [
                        "x_refsource_MISC"
                    ],
                    "url": "https://github.com/discourse/discourse/commit/b323702d87cd82c327c116d9566477f3c4f9635f"
                }
            ],
            "affected": [
                {
                    "vendor": "discourse",
                    "product": "discourse",
                    "versions": [
                        {
                            "version": "< 2026.7.0",
                            "status": "affected"
                        },
                        {
                            "version": ">= 2026.6.0-latest, < 2026.6.1",
                            "status": "affected"
                        },
                        {
                            "version": ">= 2026.5.0-latest, < 2026.5.2",
                            "status": "affected"
                        },
                        {
                            "version": ">= 2026.1.0-latest, < 2026.1.6",
                            "status": "affected"
                        }
                    ]
                }
            ],
            "providerMetadata": {
                "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
                "shortName": "GitHub_M",
                "dateUpdated": "2026-09-24T16:49:56.499Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "Discourse is an open-source discussion platform. Prior to 2026.1.6, 2026.5.2, 2026.6.1, and 2026.7.0, Discourse AI reviewables associated with private messages could appear in the moderator review queue of a moderator who was not a participant in the message. Reviewable visibility filtering did not restrict private-message reviewables to the audience permitted to access the underlying private-message topic, allowing the moderator to read otherwise confidential content. Depending on the available reviewable action, the moderator could also modify the private message by closing its topic or deleting a post. Exploitation requires an authenticated moderator account and a pre-existing Discourse AI reviewable associated with a private message. This issue is fixed in versions 2026.1.6, 2026.5.2, 2026.6.1, and 2026.7.0."
                }
            ],
            "source": {
                "advisory": "GHSA-3rx9-fqgh-wfpc",
                "discovery": "UNKNOWN"
            }
        },
        "adp": [
            {
                "metrics": [
                    {
                        "other": {
                            "type": "ssvc",
                            "content": {
                                "timestamp": "2026-09-24T17:04:31.550424Z",
                                "id": "CVE-2026-84302",
                                "options": [
                                    {
                                        "Exploitation": "none"
                                    },
                                    {
                                        "Automatable": "no"
                                    },
                                    {
                                        "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": "2026-09-24T17:04:51.257Z"
                }
            }
        ]
    }
}