139 lines
6.1 KiB
JSON
139 lines
6.1 KiB
JSON
{
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"dataType": "CVE_RECORD",
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"dataVersion": "5.2",
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"cveMetadata": {
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"cveId": "CVE-2026-8809",
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"assignerOrgId": "b15e7b5b-3da4-40ae-a43c-f7aa60e62599",
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"state": "PUBLISHED",
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"assignerShortName": "Wordfence",
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"dateReserved": "2026-05-18T06:34:31.899Z",
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"datePublished": "2026-05-28T22:27:27.387Z",
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"dateUpdated": "2026-05-29T10:08:09.995Z"
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},
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"containers": {
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"cna": {
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"providerMetadata": {
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"orgId": "b15e7b5b-3da4-40ae-a43c-f7aa60e62599",
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"shortName": "Wordfence",
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"dateUpdated": "2026-05-28T22:27:27.387Z"
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},
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"affected": [
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{
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"vendor": "hwk-fr",
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"product": "Advanced Custom Fields: Extended",
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"versions": [
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{
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"version": "0",
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"status": "affected",
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"lessThanOrEqual": "0.9.2.5",
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"versionType": "semver"
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}
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],
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"defaultStatus": "unaffected"
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}
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],
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"descriptions": [
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{
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"lang": "en",
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"value": "The Advanced Custom Fields: Extended plugin for WordPress is vulnerable to Privilege Escalation via Validation Bypass in all versions up to and including 0.9.2.5. The vulnerability exists due to the after_validate_save_post() function unconditionally trusting the attacker-controlled _acf_post_id POST parameter — with no authentication or integrity verification — to select a cleanup branch that silently discards all validation errors not prefixed with acfe:. This makes it possible for unauthenticated attackers to suppress both the role allow-list validation error added by acfe_field_user_roles::validate_front_value() and the administrator-role capability guard error added by acfe_module_form_action_user::validate_action(), causing wp_insert_user() to execute with an attacker-supplied administrator role argument and resulting in the creation of a new administrator-level user account. Exploitation requires the target site to expose a public ACFE frontend form configured with a Create User action that maps a role field."
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}
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],
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"title": "Advanced Custom Fields: Extended <= 0.9.2.5 - Unauthenticated Privilege Escalation via Validation Bypass to '_acf_post_id' Parameter",
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"references": [
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{
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"url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/bd332f49-5aa9-4207-89db-84692a6430e0?source=cve"
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},
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{
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"url": "https://plugins.trac.wordpress.org/browser/acf-extended/tags/0.9.2.4/includes/module-acf.php#L141"
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},
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{
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"url": "https://plugins.trac.wordpress.org/browser/acf-extended/tags/0.9.2.4/includes/hooks.php#L636"
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},
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{
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"url": "https://plugins.trac.wordpress.org/browser/acf-extended/tags/0.9.2.4/includes/modules/form/module-form-action-user.php#L715"
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},
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{
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"url": "https://plugins.trac.wordpress.org/browser/acf-extended/tags/0.9.2.4/includes/modules/form/module-form-front.php#L94"
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},
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{
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"url": "https://plugins.trac.wordpress.org/changeset/3551665/acf-extended"
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}
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],
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"problemTypes": [
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{
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"descriptions": [
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{
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"lang": "en",
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"description": "CWE-269 Improper Privilege Management",
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"cweId": "CWE-269",
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"type": "CWE"
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}
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]
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}
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],
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"metrics": [
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{
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"cvssV3_1": {
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"version": "3.1",
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"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
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"baseScore": 9.8,
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"baseSeverity": "CRITICAL"
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}
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}
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],
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"credits": [
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{
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"lang": "en",
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"type": "finder",
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"value": "daroo"
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}
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],
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"timeline": [
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{
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"time": "2026-05-27T10:28:29.000Z",
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"lang": "en",
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"value": "Vendor Notified"
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},
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{
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"time": "2026-05-28T10:09:02.000Z",
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"lang": "en",
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"value": "Disclosed"
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}
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]
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},
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"adp": [
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{
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"metrics": [
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{
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"other": {
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"type": "ssvc",
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"content": {
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"timestamp": "2026-05-29T10:03:00.555711Z",
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"id": "CVE-2026-8809",
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"options": [
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{
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"Exploitation": "none"
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},
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{
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"Automatable": "yes"
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},
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{
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"Technical Impact": "total"
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}
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],
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"role": "CISA Coordinator",
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"version": "2.0.3"
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}
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}
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}
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],
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"title": "CISA ADP Vulnrichment",
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"providerMetadata": {
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"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
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"shortName": "CISA-ADP",
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"dateUpdated": "2026-05-29T10:08:09.995Z"
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}
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}
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]
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}
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} |