CVE-2026-28093
Published: 05 March 2026
Summary
CVE-2026-28093 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 32.0th 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-2026-28093 is an Improper Control of Filename for Include/Require Statement in PHP Program vulnerability, classified under CWE-98 and described as enabling PHP Local File Inclusion despite being labeled as a potential PHP Remote File Inclusion issue. It affects the Ozisti WordPress theme developed by ThemeREX, impacting all versions from n/a through 1.1.10. The vulnerability 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 network accessibility and potential for significant impacts.
Remote attackers without privileges or user interaction can exploit this flaw over the network, though it requires high attack complexity. Successful exploitation allows arbitrary local file inclusion, enabling attackers to read sensitive local files on the server, potentially leading to unauthorized access to configuration data, source code, or other critical resources, with high confidentiality, integrity, and availability impacts.
Patchstack has issued an advisory detailing the vulnerability in the Ozisti WordPress theme version 1.1.10, available at https://patchstack.com/database/Wordpress/Theme/ozisti/vulnerability/wordpress-ozisti-theme-1-1-10-local-file-inclusion-vulnerability?_s_id=cve.
OWASP Top 10 for Web (2025)
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2026-9748
Vulnerability details
Improper Control of Filename for Include/Require Statement in PHP Program ('PHP Remote File Inclusion') vulnerability in ThemeREX Ozisti ozisti allows PHP Local File Inclusion.This issue affects Ozisti: from n/a through <= 1.1.10.
- CWE(s)
Related Threats
MITRE ATT&CK Enterprise TechniquesAI
Why these techniques?
The vulnerability is a remote file inclusion flaw in a public-facing WordPress theme, directly exploited via T1190 (Exploit Public-Facing Application) to achieve unauthorized file access or code execution.
CVEs Like This One
Affected Assets
Mitigating Controls
Mitigating Controls (NIST 800-53 r5) AI
SI-10 requires validation of information inputs like filenames passed to PHP include/require statements, directly preventing local file inclusion by rejecting invalid or malicious paths in the Ozisti theme.
SI-2 mandates timely flaw remediation, such as patching the vulnerable Ozisti WordPress theme versions up to 1.1.10 to eliminate the PHP local file inclusion vulnerability.
CM-6 enforces secure configuration settings like PHP open_basedir restrictions or disabling allow_url_include, limiting the impact of improper filename controls in the Ozisti theme.