CVE-2026-22457

High

Published: 05 March 2026

Published

05 March 2026

Modified

22 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 0.0052 40.0th percentile

Risk Priority 55 floored blend · peak EPSS

Summary

CVE-2026-22457 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 40.0th 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-2026-22457 is an Improper Control of Filename for Include/Require Statement in PHP Program vulnerability, classified as PHP Remote File Inclusion but enabling PHP Local File Inclusion, affecting the Mikado-Themes Wanderland WordPress theme. This issue impacts all versions of Wanderland from n/a through 1.5 inclusive, as documented under CWE-98.

Unauthenticated remote attackers can exploit this vulnerability over the network without user interaction, though it requires high attack complexity (CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H, base score 8.1). Successful exploitation allows high-impact compromise of confidentiality, integrity, and availability, potentially through local file inclusion via uncontrolled PHP include/require statements.

Mitigation details are available in the Patchstack advisory at https://patchstack.com/database/Wordpress/Theme/wanderland/vulnerability/wordpress-wanderland-theme-1-5-local-file-inclusion-vulnerability?_s_id=cve.

OWASP Top 10 for Web (2025)

EU & UK References

🇪🇺 ENISA EUVD: EUVD-2026-9578

Vulnerability details

Improper Control of Filename for Include/Require Statement in PHP Program ('PHP Remote File Inclusion') vulnerability in Mikado-Themes Wanderland wanderland allows PHP Local File Inclusion.This issue affects Wanderland: from n/a through <= 1.5.

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 →

Why these techniques?

CVE-2026-22457 is a PHP Remote/Local File Inclusion vulnerability in a public-facing WordPress theme, enabling unauthenticated remote code execution or file access, directly mapping to T1190: Exploit Public-Facing Application.

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