{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2026-3906",
        "assignerOrgId": "b15e7b5b-3da4-40ae-a43c-f7aa60e62599",
        "state": "PUBLISHED",
        "assignerShortName": "Wordfence",
        "dateReserved": "2026-03-10T19:52:58.673Z",
        "datePublished": "2026-03-11T09:25:44.130Z",
        "dateUpdated": "2026-03-11T13:18:53.880Z"
    },
    "containers": {
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                "orgId": "b15e7b5b-3da4-40ae-a43c-f7aa60e62599",
                "shortName": "Wordfence",
                "dateUpdated": "2026-03-11T09:25:44.130Z"
            },
            "affected": [
                {
                    "vendor": "WordPress Foundation",
                    "product": "WordPress",
                    "versions": [
                        {
                            "version": "6.9",
                            "status": "affected",
                            "lessThanOrEqual": "6.9.1",
                            "versionType": "semver"
                        }
                    ],
                    "defaultStatus": "unaffected"
                }
            ],
            "descriptions": [
                {
                    "lang": "en",
                    "value": "WordPress core is vulnerable to unauthorized access in versions 6.9 through 6.9.1. The Notes feature (block-level collaboration annotations) was introduced in WordPress 6.9 to allow editorial comments directly on posts in the block editor. However, the REST API `create_item_permissions_check()` method in the comments controller did not verify that the authenticated user has `edit_post` permission on the target post when creating a note. This makes it possible for authenticated attackers with Subscriber-level access to create notes on any post, including posts authored by other users, private posts, and posts in any status."
                }
            ],
            "title": "WordPress 6.9 - 6.9.1 - Missing Authorization to Authenticated (Subscriber+) Arbitrary Note Creation via REST API",
            "references": [
                {
                    "url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/a69782f0-aa61-4049-8339-7f27f4b6c36b?source=cve"
                },
                {
                    "url": "https://core.trac.wordpress.org/changeset/61888"
                },
                {
                    "url": "https://core.trac.wordpress.org/browser/trunk/src/wp-includes/rest-api/endpoints/class-wp-rest-comments-controller.php#L562"
                }
            ],
            "problemTypes": [
                {
                    "descriptions": [
                        {
                            "lang": "en",
                            "description": "CWE-862 Missing Authorization",
                            "cweId": "CWE-862",
                            "type": "CWE"
                        }
                    ]
                }
            ],
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                {
                    "cvssV3_1": {
                        "version": "3.1",
                        "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N",
                        "baseScore": 4.3,
                        "baseSeverity": "MEDIUM"
                    }
                }
            ],
            "credits": [
                {
                    "lang": "en",
                    "type": "finder",
                    "value": "kaminuma"
                }
            ],
            "timeline": [
                {
                    "time": "2026-03-10T00:00:00.000Z",
                    "lang": "en",
                    "value": "Disclosed"
                }
            ]
        },
        "adp": [
            {
                "metrics": [
                    {
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                            "type": "ssvc",
                            "content": {
                                "timestamp": "2026-03-11T13:18:15.777023Z",
                                "id": "CVE-2026-3906",
                                "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": "2026-03-11T13:18:53.880Z"
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}