CVE-2026-28030

High

Published: 05 March 2026

Published

05 March 2026

Modified

22 April 2026

KEV Added

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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 0.0043 34.5th percentile

Risk Priority 55 floored blend · peak EPSS

Summary

CVE-2026-28030 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 34.5th 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-2026-28030 is an Improper Control of Filename for Include/Require Statement vulnerability in PHP programs, described as PHP Remote File Inclusion but enabling PHP Local File Inclusion (CWE-98), affecting the ThemeREX Bonbon WordPress theme in versions from n/a through 1.6.

The vulnerability has 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), indicating exploitation over the network by unauthenticated attackers (PR:N) with high attack complexity (AC:H) and no user interaction required (UI:N). Successful exploitation can result in high impacts to confidentiality, integrity, and availability.

Mitigation details are available in the Patchstack advisory at https://patchstack.com/database/Wordpress/Theme/bonbon/vulnerability/wordpress-bonbon-theme-1-6-local-file-inclusion-vulnerability?_s_id=cve.

OWASP Top 10 for Web (2025)

EU & UK References

🇪🇺 ENISA EUVD: EUVD-2026-9692

Vulnerability details

Improper Control of Filename for Include/Require Statement in PHP Program ('PHP Remote File Inclusion') vulnerability in ThemeREX Bonbon bonbon allows PHP Local File Inclusion.This issue affects Bonbon: from n/a through <= 1.6.

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 →

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 remote exploitation (T1190) and arbitrary local file reads for data collection (T1005).

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