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Shuffle Theme EUVDEUVD-2026-65326

| CVE-2026-78566 HIGH
PHP Remote File Inclusion (CWE-98)
2026-08-25 Wordfence GHSA-gj4x-66xx-339c
8.1
CVSS 3.1 · Vendor: Wordfence
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Severity by source

Vendor (Wordfence) PRIMARY
8.1 HIGH
AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
vuln.today AI
8.1 HIGH

Network-reachable without auth (AV:N, PR:N) but AC:H because RCE requires a prior attacker-controlled file upload; full CIA impact once PHP execution is achieved.

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

Primary rating from Vendor (Wordfence).

CVSS VectorVendor: Wordfence

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

Lifecycle Timeline

2
Analysis Generated
Aug 25, 2026 - 09:18 vuln.today
CVE Published
Aug 25, 2026 - 08:28 cve.org
HIGH 8.1

DescriptionCVE.org

The Shuffle theme for WordPress is vulnerable to Local File Inclusion in all versions up to, and including, 1.8. This makes it possible for unauthenticated attackers to include and execute arbitrary files on the server, allowing the execution of any PHP code in those files. This can be used to bypass access controls, obtain sensitive data, or achieve code execution in cases where images and other “safe” file types can be uploaded and included.

AnalysisAI

Local File Inclusion in Edge-Themes' Shuffle WordPress theme (all versions through 1.8) exposes WordPress installations to unauthenticated remote code execution. An attacker without any credentials can supply a crafted path parameter to the theme's PHP include logic, causing the server to load and execute arbitrary PHP files - including attacker-uploaded content disguised as images. …

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Attack ChainAIDerived

Hypothetical attack flow derived from CVE metadata

Access
Identify WordPress site running Shuffle theme ≤ 1.8
Delivery
Upload PHP webshell via accessible media upload endpoint
Exploit
Craft HTTP request with path traversal payload targeting uploaded file
Execution
Trigger LFI include to load attacker PHP file
Impact
Execute arbitrary code under web server process context

Vulnerability AssessmentAI

Exploitation The CVSS vector confirms PR:N - no authentication or session is required to send the malicious request. … Additional conditions and limiting factors are described in the full assessment.
Risk Assessment The CVSS 3.1 vector CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H yields a score of 8.1. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in.
Exploit Scenario An unauthenticated attacker enumerates a target WordPress site and confirms the Shuffle theme (≤ 1.8) is active. The attacker exploits a WordPress feature (open registration, guest comments with attachment upload, or a misconfigured upload endpoint) to upload a PHP webshell named shell.php.jpg into wp-content/uploads/. …
Remediation Update the Shuffle theme to the patched version available from Edge-Themes; the exact remediated version number is not independently confirmed in the available intelligence data - consult the Patchstack advisory at https://patchstack.com/database/wordpress/theme/shuffle/vulnerability/wordpress-shuffle-theme-1-8-local-file-inclusion-vulnerability or the Wordfence listing for the confirmed fix version before upgrading. … Detailed patch versions, workarounds, and compensating controls in full report.

Recommended ActionAI

Within 24 hours, identify all WordPress installations running Shuffle theme version 1.8 or earlier and audit their configurations. …

Sign in for detailed remediation steps and compensating controls.

Threat intelligence, references, and detailed analysis are available after sign-in.

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EUVD-2026-65326 vulnerability details – vuln.today

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