CVE-2026-32401

High

Published: 13 March 2026

Published

13 March 2026

Modified

22 April 2026

KEV Added

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Patch

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CVSS Score v3.1 7.2 CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

EPSS Score 0.0016 36.3th percentile

Risk Priority 14 60% EPSS · 20% KEV · 20% CVSS

Summary

CVE-2026-32401 is a high-severity PHP Remote File Inclusion (CWE-98) vulnerability. Its CVSS base score is 7.2 (High).

Operationally, exploitation aligns with the MITRE ATT&CK technique Exploit Public-Facing Application (T1190); ranked at the 36.3th 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-2026-32401 is an Improper Control of Filename for Include/Require Statement vulnerability, classified as PHP Local File Inclusion (CWE-98), affecting the WordPress plugin Client Invoicing by Sprout Invoices (sprout-invoices). The issue impacts all versions from n/a through 20.8.9 and was published on 2026-03-13.

With a CVSS v3.1 base score of 7.2 (AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H), the vulnerability can be exploited over the network with low complexity by authenticated users possessing high privileges. Successful exploitation enables high-impact outcomes on confidentiality, integrity, and availability, allowing attackers to perform local file inclusion.

The Patchstack advisory provides further details on this vulnerability, including mitigation recommendations, at https://patchstack.com/database/Wordpress/Plugin/sprout-invoices/vulnerability/wordpress-client-invoicing-by-sprout-invoices-plugin-20-8-9-local-file-inclusion-vulnerability?_s_id=cve.

EU & UK References

🇪🇺 ENISA EUVD: EUVD-2026-11918

Vulnerability details

Improper Control of Filename for Include/Require Statement in PHP Program ('PHP Remote File Inclusion') vulnerability in BoldGrid Client Invoicing by Sprout Invoices sprout-invoices allows PHP Local File Inclusion.This issue affects Client Invoicing by Sprout Invoices: from n/a through <= 20.8.9.

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 (CWE-98) in public-facing WordPress plugin directly enables T1190 exploitation for initial/high-impact access and facilitates T1005 arbitrary local file reads via controlled include/require.

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