The vulnerability CVE-2026-28129 in axiomthemes Little Birdies arises from improper validation of filenames used in PHP include or require statements. This allows an attacker to perform Local File Inclusion (LFI), which can lead to arbitrary file disclosure or code execution depending on the server environment. The issue affects all versions through 1.3.16. The CVSS v3.1 base score is 8.1, reflecting network attack vector, high impact on confidentiality, integrity, and availability, and no privileges or user interaction required. No patch or vendor advisory is currently available to confirm remediation status.

Successful exploitation of this vulnerability can lead to disclosure of sensitive files, execution of arbitrary code, and full compromise of the affected system's confidentiality, integrity, and availability. Given the high CVSS score (8.1), the impact is significant. However, there are no known exploits in the wild at this time.

Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is released, users should consider restricting access to vulnerable endpoints, applying web application firewall (WAF) rules to detect and block suspicious include requests, and limiting file permissions to reduce potential impact.