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King Addons for Elementor CVE-2026-66575

| EUVDEUVD-2026-81496 MEDIUM
Authorization Bypass Through User-Controlled Key (CWE-639)
2026-09-17 Patchstack GHSA-fxcr-qcj4-34hx
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:N/I:L/A:N
vuln.today AI
5.3 MEDIUM

Unauthenticated remote IDOR (PR:N/UI:N/AC:L); impact limited to unauthorized object modification, hence I:L with C:N/A:N and unchanged scope, matching the vendor's 5.3.

3.1 AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
4.0 AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/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
None
Integrity
Low
Availability
None

Lifecycle Timeline

3
Metadata Corrected
Sep 17, 2026 - 14:40 vuln.today
tag: PHP added
Analysis Generated
Sep 17, 2026 - 14:37 vuln.today
CVE Published
Sep 17, 2026 - 13:24 cve.org
MEDIUM 5.3

DescriptionCVE.org

Unauthenticated Insecure Direct Object References (IDOR) in King Addons for Elementor <= 51.1.81 versions.

AnalysisAI

Unauthenticated insecure direct object reference (IDOR) in the King Addons for Elementor WordPress plugin at versions up to and including 51.1.81 lets remote attackers manipulate objects belonging to other users or site roles by supplying a crafted object identifier to an affected endpoint, with no authentication or user interaction required (CVSS 5.3, AV:N/AC:L/PR:N/UI:N). Impact is deliberately narrow: only Low integrity is affected (I:L), with no confidentiality or availability loss and no scope change, so the practical worst case is unauthorized modification of a single object rather than data theft or site takeover. …

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Attack ChainAIDerived

Hypothetical attack flow derived from CVE metadata

Access
technique details hidden
Delivery
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Exploit
technique details hidden
Execution
technique details hidden
Impact
technique details hidden

Vulnerability AssessmentAI

Exploitation No special conditions - remote unauthenticated exploitation against default configurations of the King Addons for Elementor WordPress plugin at versions <= 51.1.81 (CVSS PR:N/UI:N/AC:L). … Additional conditions and limiting factors are described in the full assessment.
Risk Assessment This is a genuine but moderate-severity issue, not a top-priority emergency. … 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 identified at time of analysis, and no fixed version number has been published, so remediation must be compensatory until an update above 51.1.81 appears. … Detailed patch versions, workarounds, and compensating controls in full report.

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CVE-2026-66575 vulnerability details – vuln.today

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