Cyber Posture

CVE-2026-28129

High

Published: 05 March 2026

Published
05 March 2026
Modified
22 April 2026
KEV Added
—
Patch
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CVSS Score 8.1 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS Score 0.0016 37.1th percentile
Risk Priority 16 60% EPSS · 20% KEV · 20% CVSS

Description

Improper Control of Filename for Include/Require Statement in PHP Program ('PHP Remote File Inclusion') vulnerability in axiomthemes Little Birdies little-birdies allows PHP Local File Inclusion.This issue affects Little Birdies: from n/a through <= 1.3.16.

Mitigating Controls (NIST 800-53 r5)AI

SI-2 Flaw Remediation good match
prevent

Directly remediates the improper filename control flaw in the Little Birdies WordPress theme's PHP include/require statements by applying patches or updates.

SI-10 Information Input Validation good match
prevent

Validates user-supplied filenames and paths prior to use in PHP include/require statements to block local file inclusion exploitation.

CM-6 Configuration Settings partial match
prevent

Enforces secure PHP configuration settings like open_basedir or disable_functions to restrict arbitrary local file access and inclusion.

Security SummaryAI

CVE-2026-28129 is an Improper Control of Filename for Include/Require Statement in PHP Program vulnerability, referred to as PHP Remote File Inclusion, present in the axiomthemes Little Birdies (little-birdies) WordPress theme. It enables PHP Local File Inclusion and affects all versions from n/a through 1.3.16. The vulnerability is associated with CWE-98 and carries 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).

The vulnerability can be exploited remotely by unauthenticated attackers over the network, though it requires high attack complexity and no user interaction. Successful exploitation allows attackers to achieve high impacts on confidentiality, integrity, and availability, primarily through local file inclusion to access or manipulate sensitive server files.

Mitigation details are available in advisories such as the Patchstack database entry for the WordPress Little Birdies theme vulnerability at https://patchstack.com/database/Wordpress/Theme/little-birdies/vulnerability/wordpress-little-birdies-theme-1-3-16-local-file-inclusion-vulnerability?_s_id=cve. The issue was published on 2026-03-05T06:16:47.797.

Details

CWE(s)
CWE-98

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?

The vulnerability is an LFI in a public-facing WordPress theme, exploitable remotely by unauthenticated attackers, directly enabling T1190: Exploit Public-Facing Application.

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

References