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User Registration EUVDEUVD-2026-81517

| CVE-2026-74017 MEDIUM
Missing Authorization (CWE-862)
2026-09-17 Patchstack GHSA-3xjf-4fmm-gvwf
PHP WordPress Authentication Bypass User Registration Wordpress Plugin Wpeverest
5.3
CVSS 3.1 · Vendor: Patchstack
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Severity by source

Vendor (Patchstack) PRIMARY
5.3 MEDIUM
AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
vuln.today AI
5.3 MEDIUM

Unauthenticated network endpoint with missing authorization (PR:N/AV:N/AC:L) yielding limited data disclosure only, so C:L with I:N/A:N and unchanged scope.

3.1 AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
4.0 AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N

Primary rating from Vendor (Patchstack).

CVSS VectorVendor: Patchstack

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
Low
Integrity
None
Availability
None

Lifecycle Timeline

3
Metadata Corrected
Sep 17, 2026 - 15:40 vuln.today
tag: PHP added
Analysis Generated
Sep 17, 2026 - 14:41 vuln.today
CVE Published
Sep 17, 2026 - 13:24 cve.org
MEDIUM 5.3

DescriptionCVE.org

Unauthenticated Broken Access Control in User Registration <= 5.2.7 versions.

AnalysisAI

Unauthenticated information disclosure affects the WordPress plugin User Registration (WPEverest) at versions 5.2.7 and earlier, where a missing authorization check lets remote visitors reach data that should require higher privileges. The assessed CVSS vector (5.3, AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N) confirms the issue is remotely reachable with no credentials and no user interaction, but impact is bounded to confidentiality - there is no evidence of data modification or full account takeover. …

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Attack ChainAIDerived

Hypothetical attack flow derived from CVE metadata

Access
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Execution
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Vulnerability AssessmentAI

Exploitation Requires a target WordPress site running the User Registration (wpeverest) plugin at version 5.2.7 or earlier; the vulnerable functionality is reachable remotely without authentication and without user interaction (AV:N/PR:N/UI:N), so no special credentials are needed. … Additional conditions and limiting factors are described in the full assessment.
Risk Assessment This is a moderate-severity, low-real-priority issue. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in.
Exploit Scenario Full exploit scenario with step-by-step reproduction available after sign-in.
Remediation No vendor-released patch version is identified in the available data, so the immediate action is to check the Patchstack advisory (https://patchstack.com/database/wordpress/plugin/user-registration/vulnerability/wordpress-user-registration-plugin-5-2-7-broken-access-control-vulnerability?_s_id=cve) and the WPEverest plugin page for an updated release, then upgrade User Registration past 5.2.7 as soon as one is published. … Detailed patch versions, workarounds, and compensating controls in full report.
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EUVD-2026-81517 vulnerability details – vuln.today
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