Cyber Posture

CVE-2025-6326

High

Published: 18 December 2025

Published
18 December 2025
Modified
15 April 2026
KEV Added
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Patch
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CVSS Score 8.1 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS Score 0.0022 44.7th percentile
Risk Priority 16 60% EPSS · 20% KEV · 20% CVSS

Description

Improper Control of Filename for Include/Require Statement in PHP Program ('PHP Remote File Inclusion') vulnerability in AncoraThemes Inset inset allows PHP Local File Inclusion.This issue affects Inset: from n/a through <= 1.18.0.

Mitigating Controls (NIST 800-53 r5)AI

SI-2 Flaw Remediation good match
prevent

Requires timely identification, reporting, and correction of the specific PHP Local File Inclusion flaw in the Inset WordPress theme.

SI-10 Information Input Validation good match
prevent

Mandates validation of user-supplied filenames at input interfaces to block arbitrary local file inclusion via improper PHP include/require controls.

CM-6 Configuration Settings partial match
prevent

Enforces secure configuration settings for PHP, such as open_basedir restrictions, to limit the scope of exploitable file inclusions.

Security SummaryAI

CVE-2025-6326 is an Improper Control of Filename for Include/Require Statement in PHP Program vulnerability, referred to as PHP Remote File Inclusion, in the AncoraThemes Inset WordPress theme. It enables PHP Local File Inclusion and affects the Inset theme from unknown initial versions through 1.18.0.

The vulnerability carries a CVSS v3.1 base score of 8.1 (High), with an attack vector of network (AV:N), high attack complexity (AC:H), no privileges required (PR:N), no user interaction (UI:N), unchanged scope (S:U), and high impacts on confidentiality, integrity, and availability (C:H/I:H/A:H). Unauthenticated remote attackers meeting the high complexity requirements can exploit it to achieve these impacts, mapped to CWE-98.

Mitigation details are available in the Patchstack advisory at https://patchstack.com/database/Wordpress/Theme/inset/vulnerability/wordpress-inset-1-18-0-local-file-inclusion-vulnerability?_s_id=cve.

Details

CWE(s)
CWE-98

MITRE ATT&CK Enterprise TechniquesAI

T1190 Exploit Public-Facing Application Initial Access
Adversaries may attempt to exploit a weakness in an Internet-facing host or system to initially access a network.
attack.mitre.org →
T1005 Data from Local System Collection
Adversaries may search local system sources, such as file systems, configuration files, local databases, virtual machine files, or process memory, to find files of interest and sensitive data prior to Exfiltration.
attack.mitre.org →
Why these techniques?

T1190 directly matches exploitation of a public-facing WordPress theme vulnerability. T1005 is facilitated by LFI enabling unauthorized remote access to local files on the server.

Confidence: HIGH · MITRE ATT&CK Enterprise v19.0

References