{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.1",
    "cveMetadata": {
        "cveId": "CVE-2023-42453",
        "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "state": "PUBLISHED",
        "assignerShortName": "GitHub_M",
        "dateReserved": "2023-09-08T20:57:45.573Z",
        "datePublished": "2023-09-26T20:49:23.365Z",
        "dateUpdated": "2024-08-02T19:23:38.904Z"
    },
    "containers": {
        "cna": {
            "title": "Improper validation of receipts allows forged read receipts in matrix synapse ",
            "problemTypes": [
                {
                    "descriptions": [
                        {
                            "cweId": "CWE-285",
                            "lang": "en",
                            "description": "CWE-285: Improper Authorization",
                            "type": "CWE"
                        }
                    ]
                }
            ],
            "metrics": [
                {
                    "cvssV3_1": {
                        "attackComplexity": "HIGH",
                        "attackVector": "NETWORK",
                        "availabilityImpact": "NONE",
                        "baseScore": 3.1,
                        "baseSeverity": "LOW",
                        "confidentialityImpact": "NONE",
                        "integrityImpact": "LOW",
                        "privilegesRequired": "LOW",
                        "scope": "UNCHANGED",
                        "userInteraction": "NONE",
                        "vectorString": "CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:L/A:N",
                        "version": "3.1"
                    }
                }
            ],
            "references": [
                {
                    "name": "https://github.com/matrix-org/synapse/security/advisories/GHSA-7565-cq32-vx2x",
                    "tags": [
                        "x_refsource_CONFIRM"
                    ],
                    "url": "https://github.com/matrix-org/synapse/security/advisories/GHSA-7565-cq32-vx2x"
                },
                {
                    "name": "https://github.com/matrix-org/synapse/pull/16327",
                    "tags": [
                        "x_refsource_MISC"
                    ],
                    "url": "https://github.com/matrix-org/synapse/pull/16327"
                },
                {
                    "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/65QPC55I4D27HIZP7H2NQ34EOXHPP4AO/"
                },
                {
                    "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/2AFB2Y3S2VCPCN5P2XCZTG24MBMZ7DM4/"
                },
                {
                    "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/N6P4QULVUE254WI7XF2LWWOGHCYVFXFY/"
                },
                {
                    "url": "https://security.gentoo.org/glsa/202401-12"
                }
            ],
            "affected": [
                {
                    "vendor": "matrix-org",
                    "product": "synapse",
                    "versions": [
                        {
                            "version": ">= 0.34.0, < 1.93.0",
                            "status": "affected"
                        }
                    ]
                }
            ],
            "providerMetadata": {
                "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
                "shortName": "GitHub_M",
                "dateUpdated": "2023-09-26T20:49:23.365Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "Synapse is an open-source Matrix homeserver written and maintained by the Matrix.org Foundation. Users were able to forge read receipts for any event (if they knew the room ID and event ID). Note that the users were not able to view the events, but simply mark it as read. This could be confusing as clients will show the event as read by the user, even if they are not in the room. This issue has been patched in version 1.93.0. Users are advised to upgrade. There are no known workarounds for this issue."
                }
            ],
            "source": {
                "advisory": "GHSA-7565-cq32-vx2x",
                "discovery": "UNKNOWN"
            }
        },
        "adp": [
            {
                "providerMetadata": {
                    "orgId": "af854a3a-2127-422b-91ae-364da2661108",
                    "shortName": "CVE",
                    "dateUpdated": "2024-08-02T19:23:38.904Z"
                },
                "title": "CVE Program Container",
                "references": [
                    {
                        "name": "https://github.com/matrix-org/synapse/security/advisories/GHSA-7565-cq32-vx2x",
                        "tags": [
                            "x_refsource_CONFIRM",
                            "x_transferred"
                        ],
                        "url": "https://github.com/matrix-org/synapse/security/advisories/GHSA-7565-cq32-vx2x"
                    },
                    {
                        "name": "https://github.com/matrix-org/synapse/pull/16327",
                        "tags": [
                            "x_refsource_MISC",
                            "x_transferred"
                        ],
                        "url": "https://github.com/matrix-org/synapse/pull/16327"
                    },
                    {
                        "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/65QPC55I4D27HIZP7H2NQ34EOXHPP4AO/",
                        "tags": [
                            "x_transferred"
                        ]
                    },
                    {
                        "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/2AFB2Y3S2VCPCN5P2XCZTG24MBMZ7DM4/",
                        "tags": [
                            "x_transferred"
                        ]
                    },
                    {
                        "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/N6P4QULVUE254WI7XF2LWWOGHCYVFXFY/",
                        "tags": [
                            "x_transferred"
                        ]
                    },
                    {
                        "url": "https://security.gentoo.org/glsa/202401-12",
                        "tags": [
                            "x_transferred"
                        ]
                    }
                ]
            }
        ]
    }
}