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Empik for WooCommerce EUVDEUVD-2026-83566

| CVE-2026-9766 MEDIUM
Missing Authorization (CWE-862)
2026-09-19 Wordfence GHSA-j95r-4g94-87j7
4.3
CVSS 3.1 · Vendor: Wordfence
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Severity by source

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

Network-reachable AJAX handlers, low complexity, subscriber authentication required (PR:L), and only limited integrity impact from product-metadata tampering; no C or A impact.

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

Primary rating from Vendor (Wordfence).

CVSS VectorVendor: Wordfence

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

Lifecycle Timeline

4
Metadata Corrected
Sep 19, 2026 - 09:40 vuln.today
tag: Woocommerce added
Metadata Corrected
Sep 19, 2026 - 09:40 vuln.today
tag: Authentication Bypass removed
Analysis Generated
Sep 19, 2026 - 09:06 vuln.today
CVE Published
Sep 19, 2026 - 08:27 cve.org
MEDIUM 4.3

DescriptionCVE.org

The Empik for Woocommerce plugin for WordPress is vulnerable to authorization bypass in all versions up to, and including, 1.5.1. This is due to the plugin not properly verifying that a user is authorized to perform an action. This makes it possible for authenticated attackers, with subscriber-level access and above, to modify arbitrary WooCommerce product metadata, including Empik logistic class (_empik_logistic_klass), product state (_empik_product_state, _empik_product_state_all_variants), and Empik export and offer flags on any product in the store.

AnalysisAI

Authenticated users with subscriber-level access or higher can alter Empik-specific WooCommerce product metadata on any store running the Empik for WooCommerce plugin up to and including version 1.5.1, because the plugin's CSV import and product/offer import handlers execute without verifying user capabilities. The missing authorization check (CWE-862) allows modification of the _empik_logistic_klass, _empik_product_state, _empik_product_state_all_variants, and export/offer flag fields on arbitrary products, producing an integrity-only impact scored at CVSS 4.3 with no confidentiality or availability effect and no code execution. …

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Attack ChainAIDerived

Hypothetical attack flow derived from CVE metadata

Access
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Delivery
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Exploit
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Execution
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Impact
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Vulnerability AssessmentAI

Exploitation Requires an authenticated account with subscriber-level access or higher on a WordPress site running the Empik for WooCommerce plugin (≤1.5.1) with WooCommerce active; exploitation is easiest where open user registration is enabled. … Additional conditions and limiting factors are described in the full assessment.
Risk Assessment This is a genuine but low-severity issue, correctly scored at CVSS 4.3. … 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 Upstream fix available (changeset 3592900 in the plugin repository); a released patched version has not been independently confirmed, so verify whether the plugin directory has published a version newer than 1.5.1 before upgrading, and otherwise apply the changeset manually or replace the affected files. … Detailed patch versions, workarounds, and compensating controls in full report.

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EUVD-2026-83566 vulnerability details – vuln.today

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