CVE-2026-22380

High

Published: 20 February 2026

Published

20 February 2026

Modified

15 April 2026

KEV Added

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Patch

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CVSS Score v3.1 8.1 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS Score 0.0033 25.1th percentile

Risk Priority 55 floored blend · peak EPSS

Summary

CVE-2026-22380 is a high-severity PHP Remote File Inclusion (CWE-98) vulnerability. Its CVSS base score is 8.1 (High).

Operationally, exploitation aligns with the MITRE ATT&CK technique Exploit Public-Facing Application (T1190); ranked at the 25.1th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog.

The strongest mitigations our analysis identified are NIST 800-53 SI-10 (Information Input Validation) and SI-2 (Flaw Remediation).

Deeper analysis

CVE-2026-22380 is an Improper Control of Filename for Include/Require Statement in PHP Program vulnerability, classified as a PHP Remote File Inclusion issue that enables PHP Local File Inclusion (CWE-98). It affects the UnlimHost WordPress theme developed by AncoraThemes, impacting all versions from n/a through 1.2.3. The vulnerability was published on 2026-02-20 and carries 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).

A remote, unauthenticated attacker can exploit this vulnerability over the network without user interaction, though it requires high attack complexity. Successful exploitation grants high-impact access to confidentiality, integrity, and availability, potentially allowing the inclusion of arbitrary local PHP files to disclose sensitive data or execute code on the server.

Mitigation details are available in the Patchstack advisory at https://patchstack.com/database/Wordpress/Theme/unlimhost/vulnerability/wordpress-unlimhost-theme-1-2-3-local-file-inclusion-vulnerability?_s_id=cve.

OWASP Top 10 for Web (2025)

EU & UK References

🇪🇺 ENISA EUVD: EUVD-2026-8379

Vulnerability details

Improper Control of Filename for Include/Require Statement in PHP Program ('PHP Remote File Inclusion') vulnerability in AncoraThemes UnlimHost unlimhost allows PHP Local File Inclusion.This issue affects UnlimHost: from n/a through <= 1.2.3.

CWE(s): CWE-98

Related Threats

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 →

T1083 File and Directory Discovery Discovery

Adversaries may enumerate files and directories or may search in specific locations of a host or network share for certain information within a file system.

attack.mitre.org →

Why these techniques?

LFI vulnerability in public-facing WordPress theme enables remote exploitation of public-facing application (T1190), facilitates collection of data from local system files (T1005), and file/directory discovery via path traversal (T1083).

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