CVE-2026-27987 HIGH

CVE-2026-27987: WordPress The Qlean theme <= 2.12 - Local File Inclusion vulnerability

Vendor Themerex
Product The Qlean
Weakness CWE-98 · PHP file inclusion
Published March 5, 2026
Last update April 28, 2026

CVSS base score

8.1/10
Attack vector Network
Attack complexity High
Privileges required None
User interaction None
Confidentiality High
Integrity High

CVSS vector

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

What the vulnerability does

01Description

Improper Control of Filename for Include/Require Statement in PHP Program ('PHP Remote File Inclusion') vulnerability in ThemeREX The Qlean the-qlean allows PHP Local File Inclusion.This issue affects The Qlean: from n/a through <= 2.12.

Explanation of Vulnerability in Simple Terms

02Summary

The Qlean through version 2.12 contains a flaw that allows an attacker to read sensitive data, modify site content, or disrupt service availability. The vulnerability requires network access and high attack complexity but no authentication. The exact attack vector is unclear due to incomplete CWE classification, but the high impact across confidentiality, integrity, and availability suggests a serious flaw in core functionality.

What an attacker can do

03Attacker Capabilities

Read sensitive data, modify site content, or cause the site to become unavailable.

Potential impact on your site

04Site Impact

Potential data breach, unauthorized content changes, or service downtime affecting site visitors.

Conditions required to exploit

05Prerequisites

Network access; no authentication required; high technical skill or specific conditions needed.

Key dates

06Disclosure timeline

March 5, 2026 CVE published
April 28, 2026 Record updated