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Frontend Admin CVE-2026-66662

| EUVDEUVD-2026-53888 CRITICAL
Incorrect Privilege Assignment (CWE-266)
2026-08-06 Patchstack GHSA-j7wj-8hxr-j3ww
9.8
CVSS 3.1 · Vendor: Patchstack
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Severity by source

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

Vendor-asserted unauthenticated frontend endpoint gives AV:N/AC:L/PR:N/UI:N, and administrator takeover yields full C:H/I:H/A:H with unchanged scope.

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

Primary rating from Vendor (Patchstack).

CVSS VectorVendor: Patchstack

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

Lifecycle Timeline

2
Analysis Generated
Aug 06, 2026 - 15:42 vuln.today
CVE Published
Aug 06, 2026 - 14:27 cve.org
CRITICAL 9.8

DescriptionCVE.org

Unauthenticated Privilege Escalation in Frontend Admin by DynamiApps <= 3.29.10 versions.

AnalysisAI

Privilege escalation in the Frontend Admin by DynamiApps WordPress plugin (versions up to and including 3.29.10) lets remote unauthenticated attackers elevate their privileges, per the CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H vector rated 9.8 Critical. The flaw (CWE-266, Incorrect Privilege Assignment) stems from the plugin's frontend user-management forms exposing role/capability assignment without proper authorization, enabling an attacker to gain administrator-level access to the WordPress site. …

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Attack ChainAIDerived

Hypothetical attack flow derived from CVE metadata

Access
Reach public frontend form endpoint
Delivery
Submit request manipulating role field
Exploit
Bypass missing authorization check
Execution
Gain administrator privileges
Persist
Install malicious plugin/theme
Impact
Achieve full site takeover

Vulnerability AssessmentAI

Exploitation Exploitation requires that the vulnerable Frontend Admin by DynamiApps plugin (≤3.29.10) is installed and active on the target WordPress site and that at least one of its frontend forms handling user registration or profile/role management is reachable - which is the plugin's normal deployment purpose. … Additional conditions and limiting factors are described in the full assessment.
Risk Assessment The signals point to a genuine high priority rather than an inflated score. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in.
Exploit Scenario An attacker submits a crafted request to a public Frontend Admin form endpoint on a target WordPress site, injecting or manipulating the role/capability field so the plugin assigns them administrator privileges without authorization. With admin access they install a malicious plugin or theme to achieve code execution and full site takeover. …
Remediation No vendor-released patch version is identified in the provided data (the EUVD entry lists the upper affected bound as ≤3.29.10 with no stated fix release), so update the plugin to the latest available version above 3.29.10 from the WordPress plugin repository once published and confirm the changelog references this privilege-escalation fix; consult the Patchstack advisory at https://patchstack.com/database/wordpress/plugin/acf-frontend-form-element/vulnerability/wordpress-frontend-admin-by-dynamiapps-plugin-3-29-10-privilege-escalation-vulnerability for the exact patched version. … Detailed patch versions, workarounds, and compensating controls in full report.

Recommended ActionAI

Within 24 hours, immediately disable or remove the Frontend Admin by DynamiApps plugin from all WordPress installations to eliminate the attack vector. …

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CVE-2026-66662 vulnerability details – vuln.today

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