CVE-2026-22439
Published: 05 March 2026
Summary
CVE-2026-22439 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 38.1th 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).
Threat & Defense at a Glance
Threat & Defense Details
Mitigating Controls (NIST 800-53 r5)AI
Requires timely identification, reporting, and correction of the PHP Local File Inclusion flaw in the Green Planet WordPress theme.
Enforces validation of untrusted inputs such as filenames in PHP include/require statements to block unauthorized local file access.
Implements boundary protections like web application firewalls to monitor and block network traffic exploiting the file inclusion vulnerability.
MITRE ATT&CK Enterprise TechniquesAI
Why these techniques?
CVE-2026-22439 is a Local File Inclusion vulnerability in a public-facing WordPress theme, enabling unauthenticated remote attackers to exploit the application for potential code execution or sensitive file access.
NVD Description
Improper Control of Filename for Include/Require Statement in PHP Program ('PHP Remote File Inclusion') vulnerability in AncoraThemes Green Planet green-planet allows PHP Local File Inclusion.This issue affects Green Planet: from n/a through <= 1.1.14.
Deeper analysisAI
CVE-2026-22439 is an Improper Control of Filename for Include/Require Statement in PHP Program vulnerability, classified as a PHP Remote File Inclusion issue that enables PHP Local File Inclusion, affecting the Green Planet WordPress theme developed by AncoraThemes. The vulnerability impacts all versions of the theme from n/a through 1.1.14. It 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), indicating high severity due to its potential for significant impact despite elevated complexity.
Remote, unauthenticated attackers can exploit this vulnerability over the network without user interaction, though it requires high attack complexity. Successful exploitation allows attackers to perform local file inclusion, potentially leading to high confidentiality, integrity, and availability impacts, such as unauthorized access to sensitive local files or further compromise depending on the included files.
The Patchstack advisory provides details on this WordPress theme vulnerability, including mitigation guidance, accessible at https://patchstack.com/database/Wordpress/Theme/green-planet/vulnerability/wordpress-green-planet-theme-1-1-14-local-file-inclusion-vulnerability?_s_id=cve.
Details
- CWE(s)