Cyber Posture

CVE-2026-27989

High

Published: 05 March 2026

Published
05 March 2026
Modified
22 April 2026
KEV Added
—
Patch
—
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 Quanzo quanzo allows PHP Local File Inclusion.This issue affects Quanzo: from n/a through <= 1.0.10.

Mitigating Controls (NIST 800-53 r5)AI

SI-10 Information Input Validation good match
prevent

Requires validation of user-supplied inputs used in PHP include/require statements to block malicious filenames enabling local file inclusion.

SI-2 Flaw Remediation good match
prevent

Mandates timely patching of the specific PHP Local File Inclusion vulnerability in Quanzo theme versions through 1.0.10.

CM-6 Configuration Settings good match
prevent

Enforces secure PHP configuration settings like disabling allow_url_include and restricting open_basedir to prevent arbitrary local file access.

Security SummaryAI

CVE-2026-27989 is an Improper Control of Filename for Include/Require Statement in PHP Program vulnerability, known as PHP Remote File Inclusion, that enables PHP Local File Inclusion in the ThemeREX Quanzo WordPress theme. This issue affects Quanzo versions from n/a through 1.0.10 and is associated with CWE-98. The vulnerability was published on 2026-03-05 with a CVSS 3.1 base score of 8.1 (AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H).

A remote attacker with no required privileges or user interaction can exploit this vulnerability over the network, though it demands high attack complexity. Successful exploitation allows high-impact compromise of confidentiality, integrity, and availability, potentially enabling attackers to include and execute local files on the server.

Mitigation details are available in the Patchstack advisory at https://patchstack.com/database/Wordpress/Theme/quanzo/vulnerability/wordpress-quanzo-theme-1-0-10-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?

LFI vulnerability in public-facing WordPress theme enables exploitation of public-facing application (T1190) and unauthorized access to/read arbitrary local files (T1005).

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

References