Cyber Posture

CVE-2026-28011

High

Published: 05 March 2026

Published
05 March 2026
Modified
22 April 2026
KEV Added
—
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 0.0016 37.1th 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 ThemeREX Yottis yottis allows PHP Local File Inclusion.This issue affects Yottis: from n/a through <= 1.0.10.

Mitigating Controls (NIST 800-53 r5)AI

SI-2 Flaw Remediation good match
prevent

Directly mitigates the vulnerability by requiring timely patching or updating of the affected ThemeREX Yottis WordPress theme versions up to 1.0.10.

SI-10 Information Input Validation good match
prevent

Requires validation of user-supplied filenames used in PHP include/require statements to prevent improper control leading to local file inclusion.

CM-6 Configuration Settings good match
prevent

Enforces secure PHP configuration settings like open_basedir restrictions to limit file paths accessible via local file inclusion exploits.

Security SummaryAI

CVE-2026-28011 is an Improper Control of Filename for Include/Require Statement in PHP Program vulnerability, classified as PHP Remote File Inclusion, present in the ThemeREX Yottis WordPress theme. It enables PHP Local File Inclusion and affects versions from n/a through 1.0.10.

The vulnerability has a CVSS v3.1 base score of 8.1 (AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H), indicating exploitation over the network by unauthenticated attackers requiring high attack complexity and no user interaction. Successful exploitation can result in high impacts to confidentiality, integrity, and availability, mapped to CWE-98.

The Patchstack advisory documents this Local File Inclusion vulnerability specifically in the WordPress Yottis theme version 1.0.10.

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?

LFI vulnerability in public-facing WordPress theme enables exploitation of public-facing application (T1190) and facilitates unauthorized data extraction from local system files (T1005).

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

References