Cyber Resilience

CVE-2026-22476

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 0.0040 32.0th percentile
Risk Priority 55 floored blend · peak EPSS

Summary

CVE-2026-22476 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 32.0th 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-2026-22476 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 Elated-Themes Etchy WordPress theme in versions from n/a through 1.0. The vulnerability carries a CVSS v3.1 base score of 8.1 (High), with vector AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H.

Unauthenticated attackers (PR:N) can exploit this vulnerability over the network (AV:N), though it requires high attack complexity (AC:H) and no user interaction (UI:N). Successful exploitation grants high impacts on confidentiality, integrity, and availability (C:H/I:H/A:H), allowing inclusion of arbitrary local files, potentially leading to sensitive data disclosure or code execution depending on server configuration.

Mitigation details are available in the Patchstack advisory at https://patchstack.com/database/Wordpress/Theme/etchy/vulnerability/wordpress-etchy-theme-1-0-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 Elated-Themes Etchy etchy allows PHP Local File Inclusion.This issue affects Etchy: from n/a through <= 1.0.

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 →
Why these techniques?

LFI vulnerability in public-facing WordPress theme enables exploitation of public-facing application (T1190) and facilitates reading arbitrary local files (T1005).

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

CVEs Like This One

CVE-2025-60057Shared CWE-98
CVE-2025-58940Shared CWE-98
CVE-2025-67980Shared CWE-98
CVE-2025-69034Shared CWE-98
CVE-2025-58225Shared CWE-98
CVE-2026-22427Shared CWE-98
CVE-2025-69402Shared CWE-98
CVE-2025-64205Shared CWE-98
CVE-2026-28013Shared CWE-98
CVE-2026-27076Shared CWE-98

Affected Assets

Mitigating Controls

Mitigating Controls (NIST 800-53 r5) AI

SI-2 Flaw Remediation good match
prevent

Requires timely patching and remediation of the specific PHP local file inclusion flaw in the vulnerable Elated-Themes Etchy WordPress theme versions up to 1.0.

SI-10 Information Input Validation good match
prevent

Mandates validation of user-supplied filename inputs to PHP include/require statements, directly preventing arbitrary local file inclusion exploitation.

CM-6 Configuration Settings partial match
prevent

Enforces secure configuration settings in PHP, such as open_basedir restrictions or disabling dangerous functions, to limit the impact of improper filename controls in file inclusion.

References