CVE-2026-16736 - Vulnerability Details - OpenCVE

The User Registration & Membership WordPress plugin before 5.2.6 does not enforce the site's registration-disabled setting when processing registration-form submissions, allowing unauthenticated users to create new accounts even when the administrator has turned off open registration.

No CVSS v4.0

Attack Vector Network

Attack Complexity Low

Privileges Required None

Scope Unchanged

Confidentiality Impact High

Integrity Impact None

Availability Impact None

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

The EPSS score is 0.00146.

Exploitation poc

Automatable yes

Technical Impact partial

No data.

No data.

No data.

OpenCVE Enrichment is a feature of OpenCVE that uses AI to automatically link vendors and products to CVEs. Learn more on GitHub.

Vendors	Products

References

Link	Providers
https://wpscan.com/vulnerability/dc0d63d6-bcd9-4f14-865a-49d254a831a2/

History

Wed, 05 Aug 2026 16:30:00 +0000

Type	Values Removed	Values Added
Metrics		cvssV3_1 `{'score': 7.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N'}` ssvc `{'options': {'Automatable': 'yes', 'Exploitation': 'poc', 'Technical Impact': 'partial'}, 'version': '2.0.3'}`

Wed, 05 Aug 2026 07:45:00 +0000

Type	Values Removed	Values Added
Weaknesses		CWE-284

Wed, 05 Aug 2026 06:30:00 +0000

Type	Values Removed	Values Added
Description		The User Registration & Membership WordPress plugin before 5.2.6 does not enforce the site's registration-disabled setting when processing registration-form submissions, allowing unauthenticated users to create new accounts even when the administrator has turned off open registration.
Title		User Registration & Membership < 5.2.6 - Unauthenticated Account Creation While Registration Disabled
References		https://wpscan.com/vulnerability/dc0d63d6-bcd9-4f14-865a-49d254a831a2/

MITRE

Status: PUBLISHED

Assigner: WPScan

Published: 2026-08-05T06:00:10.288Z

Updated: 2026-08-05T15:18:10.214Z

Reserved: 2026-07-23T07:49:11.677Z

Link: CVE-2026-16736

Vulnrichment

Updated: 2026-08-05T15:18:06.756Z

NVD

No data.

Redhat

No data.

OpenCVE Enrichment

Updated: 2026-08-05T18:00:10Z

{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-16736", "assignerOrgId": "1bfdd5d7-9bf6-4a53-96ea-42e2716d7a81", "state": "PUBLISHED", "assignerShortName": "WPScan", "dateReserved": "2026-07-23T07:49:11.677Z", "datePublished": "2026-08-05T06:00:10.288Z", "dateUpdated": "2026-08-05T15:18:10.214Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "1bfdd5d7-9bf6-4a53-96ea-42e2716d7a81", "shortName": "WPScan", "dateUpdated": "2026-08-05T06:00:10.288Z"}, "title": "User Registration & Membership < 5.2.6 - Unauthenticated Account Creation While Registration Disabled", "problemTypes": [{"descriptions": [{"description": "CWE-284 Improper Access Control", "lang": "en", "type": "CWE"}]}], "affected": [{"vendor": "Unknown", "product": "User Registration & Membership", "versions": [{"status": "affected", "versionType": "semver", "version": "0", "lessThan": "5.2.6"}], "defaultStatus": "unaffected"}], "descriptions": [{"lang": "en", "value": "The User Registration & Membership WordPress plugin before 5.2.6 does not enforce the site's registration-disabled setting when processing registration-form submissions, allowing unauthenticated users to create new accounts even when the administrator has turned off open registration."}], "references": [{"url": "https://wpscan.com/vulnerability/dc0d63d6-bcd9-4f14-865a-49d254a831a2/", "tags": ["exploit", "vdb-entry", "technical-description"]}], "credits": [{"lang": "en", "value": "Nguy\u1ec5n \u0110\u1ee9c H\u00f2a", "type": "finder"}, {"lang": "en", "value": "WPScan", "type": "coordinator"}], "source": {"discovery": "EXTERNAL"}, "x_generator": {"engine": "WPScan CVE Generator"}}, "adp": [{"problemTypes": [{"descriptions": [{"type": "CWE", "cweId": "CWE-284", "lang": "en", "description": "CWE-284 Improper Access Control"}]}], "metrics": [{"cvssV3_1": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 7.5, "attackVector": "NETWORK", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "NONE", "privilegesRequired": "NONE", "confidentialityImpact": "HIGH"}}, {"other": {"type": "ssvc", "content": {"timestamp": "2026-08-05T15:17:51.245263Z", "id": "CVE-2026-16736", "options": [{"Exploitation": "poc"}, {"Automatable": "yes"}, {"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": "2026-08-05T15:18:10.214Z"}}]}}

{"dataType": "CVE_RECORD", "containers": {"adp": [{"title": "CISA ADP Vulnrichment", "metrics": [{"cvssV3_1": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 7.5, "attackVector": "NETWORK", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "NONE", "privilegesRequired": "NONE", "confidentialityImpact": "HIGH"}}, {"other": {"type": "ssvc", "content": {"id": "CVE-2026-16736", "role": "CISA Coordinator", "options": [{"Exploitation": "poc"}, {"Automatable": "yes"}, {"Technical Impact": "partial"}], "version": "2.0.3", "timestamp": "2026-08-05T15:17:51.245263Z"}}}], "problemTypes": [{"descriptions": [{"lang": "en", "type": "CWE", "cweId": "CWE-284", "description": "CWE-284 Improper Access Control"}]}], "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-08-05T15:18:06.756Z"}}], "cna": {"title": "User Registration & Membership < 5.2.6 - Unauthenticated Account Creation While Registration Disabled", "source": {"discovery": "EXTERNAL"}, "credits": [{"lang": "en", "type": "finder", "value": "Nguy\u1ec5n \u0110\u1ee9c H\u00f2a"}, {"lang": "en", "type": "coordinator", "value": "WPScan"}], "affected": [{"vendor": "Unknown", "product": "User Registration & Membership", "versions": [{"status": "affected", "version": "0", "lessThan": "5.2.6", "versionType": "semver"}], "defaultStatus": "unaffected"}], "references": [{"url": "https://wpscan.com/vulnerability/dc0d63d6-bcd9-4f14-865a-49d254a831a2/", "tags": ["exploit", "vdb-entry", "technical-description"]}], "x_generator": {"engine": "WPScan CVE Generator"}, "descriptions": [{"lang": "en", "value": "The User Registration & Membership WordPress plugin before 5.2.6 does not enforce the site's registration-disabled setting when processing registration-form submissions, allowing unauthenticated users to create new accounts even when the administrator has turned off open registration."}], "problemTypes": [{"descriptions": [{"lang": "en", "type": "CWE", "description": "CWE-284 Improper Access Control"}]}], "providerMetadata": {"orgId": "1bfdd5d7-9bf6-4a53-96ea-42e2716d7a81", "shortName": "WPScan", "dateUpdated": "2026-08-05T06:00:10.288Z"}}}, "cveMetadata": {"cveId": "CVE-2026-16736", "state": "PUBLISHED", "dateUpdated": "2026-08-05T15:18:10.214Z", "dateReserved": "2026-07-23T07:49:11.677Z", "assignerOrgId": "1bfdd5d7-9bf6-4a53-96ea-42e2716d7a81", "datePublished": "2026-08-05T06:00:10.288Z", "assignerShortName": "WPScan"}, "dataVersion": "5.2"}