Is there a patch available for CVE-2026-83492?

Yes, a patch is available for CVE-2026-83492. Update the affected software to the latest version immediately.

Kubio AI Website Builder CVE-2026-83492

Q: What is the CVSS score of CVE-2026-83492?

CVE-2026-83492 has a CVSS 4.0 base score of 6.9 (Medium). CVSS vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X. EPSS exploitation probability: 0.2%.

EUVD-2026-68616 MEDIUM

Improper Input Validation (CWE-20)

2026-08-31 tenable

GHSA-5mqc-wggr-wp64

Kubio Ai Website Builder Extend Themes

6.9

CVSS 4.0 · Vendor: tenable

Severity by source

Vendor (tenable) PRIMARY

6.9 MEDIUM

CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

vuln.today AI

4.9 MEDIUM

Network-reachable but requires high privileges; impact is confined to availability on the vulnerable system only, with no confidentiality, integrity, or scope-change effects.

3.1 AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H

4.0 AV:N/AC:L/AT:N/PR:H/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N

Primary rating from Vendor (tenable).

CVSS VectorVendor: tenable

Attack Vector

Network

Attack Complexity

Low

Privileges Required

High

User Interaction

None

Scope

Lifecycle Timeline

Patch available

Aug 31, 2026 - 17:17 EUVD

Metadata Corrected

Aug 31, 2026 - 16:40 vuln.today

tag: Information Disclosure removed

Analysis Generated

Aug 31, 2026 - 16:21 vuln.today

DescriptionCVE.org

Improper input validation vulnerability in Extend Themes Kubio AI Website Builder.

This issue affects Kubio AI Website Builder: before 2.9.1.

AnalysisAI

Availability disruption in Kubio AI Website Builder (a WordPress page-builder plugin by Extend Themes) affects all versions before 2.9.1, exploitable by authenticated high-privilege users over a network connection. CWE-20 improper input validation allows a privileged attacker to submit malformed input to the plugin, producing a denial-of-service condition against the vulnerable system with no confidentiality or integrity impact. …

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Attack ChainAIDerived

Hypothetical attack flow derived from CVE metadata

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Vulnerability AssessmentAI

Exploitation	Exploitation requires a valid WordPress administrator-level session (PR:H); the attacker must fully authenticate before any exploitation attempt is possible. … Additional conditions and limiting factors are described in the full assessment.
Risk Assessment	The CVSS 4.0 score of 6.9 (Medium) reflects a vulnerability with meaningful but structurally constrained real-world risk. … 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	Upgrade Kubio AI Website Builder to version 2.9.1 or later, which resolves this improper input validation flaw. … Detailed patch versions, workarounds, and compensating controls in full report.