What is the CVSS score of CVE-2026-27987?

CVE-2026-27987 has a CVSS 3.1 base score of 8.1 (High). CVSS vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H. EPSS exploitation probability: 0.2%.

Which versions of PHP are affected by CVE-2026-27987?

A critical file inclusion vulnerability in ThemeREX The Qlean WordPress theme (versions ≤2.12) could allow attackers to read sensitive files or execute arbitrary code on affected websites.

How to fix or mitigate CVE-2026-27987?

Within 24 hours: Identify all WordPress installations using The Qlean theme and document affected systems. Within 7 days: Implement WAF rules to block suspicious file inclusion patterns targeting the vulnerable endpoints, disable the affected theme functionality if possible, or isolate affected sites from production traffic. Within 30 days: Upgrade The Qlean theme to a patched version when available, or migrate to an alternative theme if no patch is released by the vendor.

PHP CVE-2026-27987

HIGH

PHP Remote File Inclusion (CWE-98)

2026-03-05 audit@patchstack.com

PHP LFI Information Disclosure

8.1

CVSS 3.1 · NVD

Severity by source

NVD PRIMARY

8.1 HIGH

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

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

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

Re-analysis Queued

Apr 22, 2026 - 21:37 vuln.today

cvss_changed

Analysis Generated

Mar 12, 2026 - 22:06 vuln.today

CVE Published

Mar 05, 2026 - 06:16 nvd

HIGH 8.1

DescriptionCVE.org

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.

AnalysisAI

ThemeREX The Qlean WordPress theme through version 2.12 contains a local file inclusion vulnerability in its PHP file handling that enables attackers to read arbitrary files from the server. The vulnerability requires no authentication and can be exploited remotely to access sensitive configuration files and source code. While no patch is currently available, the relatively low EPSS score suggests limited real-world exploitation at this time.

Technical ContextAI

Classified as CWE-98 (PHP Remote File Inclusion). Affects ThemeREX The Qlean the-qlean. 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.