Cyber Resilience

CVE-2026-22431

High

Published: 05 March 2026

Published
05 March 2026
Modified
22 April 2026
KEV Added
—
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-2026-22431 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-2026-22431 is an Improper Control of Filename for Include/Require Statement in PHP Program vulnerability, commonly known as PHP Remote File Inclusion, affecting the AncoraThemes Wabi-Sabi WordPress theme. Specifically, it enables PHP Local File Inclusion in versions from unknown starting points through 1.2. The issue 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) and is associated with CWE-98.

Remote attackers require no privileges or user interaction but face high attack complexity to exploit this over the network. Successful exploitation allows high-impact compromise of confidentiality, integrity, and availability, typically through local file inclusion that could lead to arbitrary file reads or, depending on server configuration, potential code execution.

Patchstack has published details on the vulnerability, including mitigation guidance, available at https://patchstack.com/database/Wordpress/Theme/wabi-sabi/vulnerability/wordpress-wabi-sabi-theme-1-2-local-file-inclusion-vulnerability?_s_id=cve.

OWASP Top 10 for Web (2025)

A05:2025 Injection

EU & UK References

Vulnerability details

Improper Control of Filename for Include/Require Statement in PHP Program ('PHP Remote File Inclusion') vulnerability in AncoraThemes Wabi-Sabi wabi-sabi allows PHP Local File Inclusion.This issue affects Wabi-Sabi: from n/a through <= 1.2.

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?

Unauthenticated remote LFI vulnerability in public-facing WordPress theme enables arbitrary local file inclusion/execution, directly mapping to exploitation of public-facing application.

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

CVEs Like This One

CVE-2025-58923Shared CWE-98
CVE-2025-69057Shared CWE-98
CVE-2024-54263Shared CWE-98
CVE-2026-28035Shared CWE-98
CVE-2026-28024Shared CWE-98
CVE-2025-67525Shared CWE-98
CVE-2025-22707Shared CWE-98
CVE-2025-69375Shared CWE-98
CVE-2026-22443Shared CWE-98
CVE-2025-53198Shared CWE-98

Affected Assets

Mitigating Controls

Mitigating Controls (NIST 800-53 r5) AI

SI-2 Flaw Remediation good match
prevent

Timely remediation of the LFI flaw in the Wabi-Sabi WordPress theme directly prevents exploitation of improper filename controls in PHP include/require statements.

SI-10 Information Input Validation good match
prevent

Validates user-supplied filenames to block path traversal sequences that enable local file inclusion in the vulnerable PHP code.

CM-6 Configuration Settings partial match
prevent

Enforces PHP configuration settings like open_basedir restrictions to limit file access paths and mitigate LFI impacts even if code validation fails.

References