CVE-2026-2356 (GCVE-0-2026-2356)
Vulnerability from cvelistv5 – Published: 2026-02-26 02:23 – Updated: 2026-02-26 14:41
VLAI?
Title
User Registration & Membership <= 5.1.2 - Insecure Direct Object Reference to Unauthenticated Limited User Deletion
Summary
The User Registration & Membership – Custom Registration Form, Login Form, and User Profile plugin for WordPress is vulnerable to Insecure Direct Object Reference in all versions up to, and including, 5.1.2 via the 'register_member' function, due to missing validation on the 'member_id' user controlled key. This makes it possible for unauthenticated attackers to delete arbitrary user accounts that newly registered on the site who has the 'urm_user_just_created' user meta set.
Severity ?
5.3 (Medium)
CWE
- CWE-284 - Improper Access Control
Assigner
References
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| wpeverest | User Registration & Membership – Free & Paid Memberships, Subscriptions, Content Restriction, User Profile, Custom User Registration & Login Builder |
Affected:
* , ≤ 5.1.2
(semver)
|
Credits
Phú
{
"containers": {
"adp": [
{
"metrics": [
{
"other": {
"content": {
"id": "CVE-2026-2356",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "yes"
},
{
"Technical Impact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-02-26T14:41:43.910634Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2026-02-26T14:41:55.080Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"defaultStatus": "unaffected",
"product": "User Registration \u0026 Membership \u2013 Free \u0026 Paid Memberships, Subscriptions, Content Restriction, User Profile, Custom User Registration \u0026 Login Builder",
"vendor": "wpeverest",
"versions": [
{
"lessThanOrEqual": "5.1.2",
"status": "affected",
"version": "*",
"versionType": "semver"
}
]
}
],
"credits": [
{
"lang": "en",
"type": "finder",
"value": "Ph\u00fa"
}
],
"descriptions": [
{
"lang": "en",
"value": "The User Registration \u0026 Membership \u2013 Custom Registration Form, Login Form, and User Profile plugin for WordPress is vulnerable to Insecure Direct Object Reference in all versions up to, and including, 5.1.2 via the \u0027register_member\u0027 function, due to missing validation on the \u0027member_id\u0027 user controlled key. This makes it possible for unauthenticated attackers to delete arbitrary user accounts that newly registered on the site who has the \u0027urm_user_just_created\u0027 user meta set."
}
],
"metrics": [
{
"cvssV3_1": {
"baseScore": 5.3,
"baseSeverity": "MEDIUM",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N",
"version": "3.1"
}
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-284",
"description": "CWE-284 Improper Access Control",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-02-26T02:23:55.847Z",
"orgId": "b15e7b5b-3da4-40ae-a43c-f7aa60e62599",
"shortName": "Wordfence"
},
"references": [
{
"url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/a5a1ccb2-4f78-4855-a01d-b15f73407822?source=cve"
},
{
"url": "https://plugins.trac.wordpress.org/browser/user-registration/tags/5.1.1/modules/membership/includes/AJAX.php#L142"
}
],
"timeline": [
{
"lang": "en",
"time": "2026-02-11T17:11:10.000Z",
"value": "Vendor Notified"
},
{
"lang": "en",
"time": "2026-02-25T13:29:35.000Z",
"value": "Disclosed"
}
],
"title": "User Registration \u0026 Membership \u003c= 5.1.2 - Insecure Direct Object Reference to Unauthenticated Limited User Deletion"
}
},
"cveMetadata": {
"assignerOrgId": "b15e7b5b-3da4-40ae-a43c-f7aa60e62599",
"assignerShortName": "Wordfence",
"cveId": "CVE-2026-2356",
"datePublished": "2026-02-26T02:23:55.847Z",
"dateReserved": "2026-02-11T16:54:51.661Z",
"dateUpdated": "2026-02-26T14:41:55.080Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2",
"vulnerability-lookup:meta": {
"nvd": "{\"cve\":{\"id\":\"CVE-2026-2356\",\"sourceIdentifier\":\"security@wordfence.com\",\"published\":\"2026-02-26T03:16:05.293\",\"lastModified\":\"2026-02-27T14:06:59.787\",\"vulnStatus\":\"Awaiting Analysis\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"The User Registration \u0026 Membership \u2013 Custom Registration Form, Login Form, and User Profile plugin for WordPress is vulnerable to Insecure Direct Object Reference in all versions up to, and including, 5.1.2 via the \u0027register_member\u0027 function, due to missing validation on the \u0027member_id\u0027 user controlled key. This makes it possible for unauthenticated attackers to delete arbitrary user accounts that newly registered on the site who has the \u0027urm_user_just_created\u0027 user meta set.\"},{\"lang\":\"es\",\"value\":\"El plugin User Registration \u0026amp; Membership \u2013 Custom Registration Form, Login Form, and User Profile para WordPress es vulnerable a Referencia Directa Insegura a Objeto en todas las versiones hasta la 5.1.2, inclusive, a trav\u00e9s de la funci\u00f3n \u0027register_member\u0027, debido a la falta de validaci\u00f3n en la clave \u0027member_id\u0027 controlada por el usuario. Esto hace posible que atacantes no autenticados eliminen cuentas de usuario arbitrarias que se registraron recientemente en el sitio y que tienen configurado el metadato de usuario \u0027urm_user_just_created\u0027.\"}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"security@wordfence.com\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N\",\"baseScore\":5.3,\"baseSeverity\":\"MEDIUM\",\"attackVector\":\"NETWORK\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"NONE\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"NONE\",\"integrityImpact\":\"LOW\",\"availabilityImpact\":\"NONE\"},\"exploitabilityScore\":3.9,\"impactScore\":1.4}]},\"weaknesses\":[{\"source\":\"security@wordfence.com\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-284\"}]}],\"references\":[{\"url\":\"https://plugins.trac.wordpress.org/browser/user-registration/tags/5.1.1/modules/membership/includes/AJAX.php#L142\",\"source\":\"security@wordfence.com\"},{\"url\":\"https://www.wordfence.com/threat-intel/vulnerabilities/id/a5a1ccb2-4f78-4855-a01d-b15f73407822?source=cve\",\"source\":\"security@wordfence.com\"}]}}",
"vulnrichment": {
"containers": "{\"adp\": [{\"title\": \"CISA ADP Vulnrichment\", \"metrics\": [{\"other\": {\"type\": \"ssvc\", \"content\": {\"id\": \"CVE-2026-2356\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"none\"}, {\"Automatable\": \"yes\"}, {\"Technical Impact\": \"partial\"}], \"version\": \"2.0.3\", \"timestamp\": \"2026-02-26T14:41:43.910634Z\"}}}], \"providerMetadata\": {\"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2026-02-26T14:41:49.306Z\"}}], \"cna\": {\"title\": \"User Registration \u0026 Membership \u003c= 5.1.2 - Insecure Direct Object Reference to Unauthenticated Limited User Deletion\", \"credits\": [{\"lang\": \"en\", \"type\": \"finder\", \"value\": \"Ph\\u00fa\"}], \"metrics\": [{\"cvssV3_1\": {\"version\": \"3.1\", \"baseScore\": 5.3, \"baseSeverity\": \"MEDIUM\", \"vectorString\": \"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N\"}}], \"affected\": [{\"vendor\": \"wpeverest\", \"product\": \"User Registration \u0026 Membership \\u2013 Free \u0026 Paid Memberships, Subscriptions, Content Restriction, User Profile, Custom User Registration \u0026 Login Builder\", \"versions\": [{\"status\": \"affected\", \"version\": \"*\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"5.1.2\"}], \"defaultStatus\": \"unaffected\"}], \"timeline\": [{\"lang\": \"en\", \"time\": \"2026-02-11T17:11:10.000Z\", \"value\": \"Vendor Notified\"}, {\"lang\": \"en\", \"time\": \"2026-02-25T13:29:35.000Z\", \"value\": \"Disclosed\"}], \"references\": [{\"url\": \"https://www.wordfence.com/threat-intel/vulnerabilities/id/a5a1ccb2-4f78-4855-a01d-b15f73407822?source=cve\"}, {\"url\": \"https://plugins.trac.wordpress.org/browser/user-registration/tags/5.1.1/modules/membership/includes/AJAX.php#L142\"}], \"descriptions\": [{\"lang\": \"en\", \"value\": \"The User Registration \u0026 Membership \\u2013 Custom Registration Form, Login Form, and User Profile plugin for WordPress is vulnerable to Insecure Direct Object Reference in all versions up to, and including, 5.1.2 via the \u0027register_member\u0027 function, due to missing validation on the \u0027member_id\u0027 user controlled key. This makes it possible for unauthenticated attackers to delete arbitrary user accounts that newly registered on the site who has the \u0027urm_user_just_created\u0027 user meta set.\"}], \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en\", \"type\": \"CWE\", \"cweId\": \"CWE-284\", \"description\": \"CWE-284 Improper Access Control\"}]}], \"providerMetadata\": {\"orgId\": \"b15e7b5b-3da4-40ae-a43c-f7aa60e62599\", \"shortName\": \"Wordfence\", \"dateUpdated\": \"2026-02-26T02:23:55.847Z\"}}}",
"cveMetadata": "{\"cveId\": \"CVE-2026-2356\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2026-02-26T14:41:55.080Z\", \"dateReserved\": \"2026-02-11T16:54:51.661Z\", \"assignerOrgId\": \"b15e7b5b-3da4-40ae-a43c-f7aa60e62599\", \"datePublished\": \"2026-02-26T02:23:55.847Z\", \"assignerShortName\": \"Wordfence\"}",
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
}
}
Loading…
Loading…
Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
Loading…
Loading…