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vuln-cve/data/2026/12xxx/CVE-2026-12428.json
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{
"dataType": "CVE_RECORD",
"dataVersion": "5.2",
"cveMetadata": {
"cveId": "CVE-2026-12428",
"assignerOrgId": "b15e7b5b-3da4-40ae-a43c-f7aa60e62599",
"state": "PUBLISHED",
"assignerShortName": "Wordfence",
"dateReserved": "2026-06-16T17:09:56.538Z",
"datePublished": "2026-07-09T09:31:23.347Z",
"dateUpdated": "2026-07-09T14:39:22.498Z"
},
"containers": {
"cna": {
"providerMetadata": {
"orgId": "b15e7b5b-3da4-40ae-a43c-f7aa60e62599",
"shortName": "Wordfence",
"dateUpdated": "2026-07-09T09:31:23.347Z"
},
"affected": [
{
"vendor": "gamaup",
"product": "Blocks for ACF Fields — Display Custom Fields in the Block Editor",
"versions": [
{
"version": "0",
"status": "affected",
"lessThanOrEqual": "1.6.2",
"versionType": "semver"
}
],
"defaultStatus": "unaffected"
}
],
"descriptions": [
{
"lang": "en",
"value": "The Blocks for ACF Fields plugin for WordPress is vulnerable to unauthorized access of data due to a missing capability check on the get_all_values() function in the /wp-json/acf-field-blocks/v1/values REST endpoint in versions up to, and including, 1.6.2. The permission_callback only verifies the generic publish_posts capability and the handler passes a user-supplied id parameter directly to get_field_objects() without verifying that the requesting user is authorized to read the target object. This makes it possible for authenticated attackers, with Author-level access and above, to read ACF field values from arbitrary posts (including private posts, drafts, posts by other users, and other ACF-supported objects) that they should not have access to."
}
],
"title": "Blocks for ACF Fields <= 1.6.2 - Missing Authorization to Authenticated (Author+) Arbitrary ACF Field Value Disclosure via 'id' Parameter",
"references": [
{
"url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/fc48f75d-a2e8-49ea-9bfa-a27a61ff8a84?source=cve"
},
{
"url": "https://plugins.trac.wordpress.org/browser/acf-field-blocks/tags/1.6.0/inc/class-rest.php#L302"
},
{
"url": "https://plugins.trac.wordpress.org/browser/acf-field-blocks/tags/1.6.0/inc/class-rest.php#L100"
},
{
"url": "https://plugins.trac.wordpress.org/browser/acf-field-blocks/tags/1.6.0/inc/class-rest.php#L296"
},
{
"url": "https://plugins.trac.wordpress.org/browser/acf-field-blocks/tags/1.5.0/inc/class-rest.php#L302"
},
{
"url": "https://plugins.trac.wordpress.org/browser/acf-field-blocks/tags/1.5.0/inc/class-rest.php#L100"
},
{
"url": "https://plugins.trac.wordpress.org/browser/acf-field-blocks/tags/1.5.0/inc/class-rest.php#L296"
},
{
"url": "https://plugins.trac.wordpress.org/changeset?reponame=&old=3587876%40acf-field-blocks&new=3587876%40acf-field-blocks"
}
],
"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:H/I:N/A:N",
"baseScore": 6.5,
"baseSeverity": "MEDIUM"
}
}
],
"credits": [
{
"lang": "en",
"type": "finder",
"value": "thinnawarth mathuros"
}
],
"timeline": [
{
"time": "2026-07-08T20:36:42.000Z",
"lang": "en",
"value": "Disclosed"
}
]
},
"adp": [
{
"metrics": [
{
"other": {
"type": "ssvc",
"content": {
"timestamp": "2026-07-09T13:16:17.161421Z",
"id": "CVE-2026-12428",
"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": "2026-07-09T14:39:22.498Z"
}
}
]
}
}