Cyber Resilience

CVE-2025-26979

High

Published: 25 February 2025

Published
25 February 2025
Modified
23 April 2026
KEV Added
—
Patch
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CVSS Score v3.1 7.5 CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H
EPSS Score 0.0045 63.9th percentile
Risk Priority 15 60% EPSS · 20% KEV · 20% CVSS

Summary

CVE-2025-26979 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 in the top 36.1% of CVEs by exploit likelihood; 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

The vulnerability is a PHP Local File Inclusion issue stemming from improper control of filenames in include/require statements, tracked as CWE-98. It affects the Funnel Builder by FunnelKit WordPress plugin in all versions through 3.9.0 and carries a CVSS 3.1 score of 7.5.

An unauthenticated remote attacker can exploit the flaw over the network, though successful exploitation requires high attack complexity and user interaction. Successful abuse allows the attacker to include arbitrary local files, resulting in high impact to confidentiality, integrity, and availability on the affected site.

The EPSS score rose from a low baseline to a peak of 0.0119, indicating emerging exploitation interest after disclosure. Details and further guidance are available in the Patchstack advisory for the plugin.

EU & UK References

Vulnerability details

Improper Control of Filename for Include/Require Statement in PHP Program ('PHP Remote File Inclusion') vulnerability in Aman Funnel Builder by FunnelKit funnel-builder allows PHP Local File Inclusion.This issue affects Funnel Builder by FunnelKit: from n/a through <= 3.9.0.

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 in public-facing WordPress plugin directly enables T1190 for initial access and facilitates T1005 via arbitrary local file reads.

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

CVEs Like This One

CVE-2025-68537Shared CWE-98
CVE-2026-28079Shared CWE-98
CVE-2026-28061Shared CWE-98
CVE-2026-28048Shared CWE-98
CVE-2026-22516Shared CWE-98
CVE-2026-28120Shared CWE-98
CVE-2025-67992Shared CWE-98
CVE-2025-31432Shared CWE-98
CVE-2026-39613Shared CWE-98
CVE-2025-26957Shared CWE-98

Affected Assets

Mitigating Controls

Mitigating Controls (NIST 800-53 r5) AI

SI-2 Flaw Remediation good match
prevent

Requires timely identification, prioritization, and correction of the PHP Local File Inclusion flaw in the Funnel Builder plugin, directly mitigating CVE-2025-26979.

SI-10 Information Input Validation good match
prevent

Enforces validation of user-supplied filenames prior to use in PHP include/require statements, preventing improper control exploited in this LFI vulnerability.

RA-5 Vulnerability Monitoring and Scanning partial match
detect

Supports ongoing vulnerability scanning to identify the presence of CVE-2025-26979 in installed WordPress plugins like Funnel Builder.

References