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vuln-cve/data/2026/3xxx/CVE-2026-3906.json
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{
"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": {
"cna": {
"providerMetadata": {
"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"
}
]
}
],
"metrics": [
{
"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": [
{
"other": {
"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"
}
}
]
}
}