Cyber Resilience

CVE-2025-63017

High

Published: 22 January 2026

Published
22 January 2026
Modified
15 April 2026
KEV Added
—
Patch
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CVSS Score v3.1 7.5 CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
EPSS Score 0.0007 20.9th percentile
Risk Priority 15 60% EPSS · 20% KEV · 20% CVSS

Summary

CVE-2025-63017 is a high-severity PHP Remote File Inclusion (CWE-98) vulnerability. Its CVSS base score is 7.5 (High).

Operationally, exploitation aligns with the MITRE ATT&CK technique Exploit Public-Facing Application (T1190); ranked at the 20.9th 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-2025-63017 is an Improper Control of Filename for Include/Require Statement in PHP Program vulnerability, classified as a PHP Remote File Inclusion issue, in the fuelthemes WerkStatt Plugin (werkstatt-plugin) for WordPress. It enables PHP Local File Inclusion and affects all versions from n/a through 1.6.6. The vulnerability carries a CVSS v3.1 base score of 7.5 (AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H) and is associated with CWE-98.

The vulnerability can be exploited over the network by an attacker with low privileges (PR:L), though it requires high attack complexity (AC:H) and no user interaction (UI:N). Successful exploitation allows high-impact consequences, including unauthorized access to sensitive data (C:H), modification of system files or behavior (I:H), and disruption of service (A:H), potentially leading to full compromise of the affected WordPress site through local file inclusion techniques.

Patchstack has published an advisory detailing the vulnerability at https://patchstack.com/database/Wordpress/Plugin/werkstatt-plugin/vulnerability/wordpress-werkstatt-plugin-plugin-1-6-6-local-file-inclusion-vulnerability?_s_id=cve, which serves as the primary reference for practitioners seeking further technical details or patch information.

EU & UK References

Vulnerability details

Improper Control of Filename for Include/Require Statement in PHP Program ('PHP Remote File Inclusion') vulnerability in fuelthemes WerkStatt Plugin werkstatt-plugin allows PHP Local File Inclusion.This issue affects WerkStatt Plugin: from n/a through <= 1.6.6.

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?

Direct LFI/RFI in public-facing WordPress plugin enables exploitation of public-facing applications for initial access and RCE.

Confidence: HIGH · MITRE ATT&CK Enterprise v18.1

CVEs Like This One

CVE-2026-28087Shared CWE-98
CVE-2025-23952Shared CWE-98
CVE-2026-32505Shared CWE-98
CVE-2025-48149Shared CWE-98
CVE-2025-60058Shared CWE-98
CVE-2025-49994Shared CWE-98
CVE-2026-24531Shared CWE-98
CVE-2025-67527Shared CWE-98
CVE-2025-69396Shared CWE-98
CVE-2025-62067Shared CWE-98

Affected Assets

Mitigating Controls

Mitigating Controls (NIST 800-53 r5) AI

SI-10 Information Input Validation good match
prevent

Directly mitigates the improper filename control in PHP include/require by validating user-supplied inputs to prevent local file inclusion in the WerkStatt plugin.

SI-2 Flaw Remediation good match
prevent

Requires timely identification, reporting, and patching of the specific flaw in WerkStatt plugin versions through 1.6.6 to eliminate the vulnerability.

RA-5 Vulnerability Monitoring and Scanning partial match
detect

Enables scanning and monitoring to identify the presence of the vulnerable WerkStatt plugin in WordPress environments.

References