CVE-2026-25326
Published: 19 February 2026
Summary
CVE-2026-25326 is a high-severity PHP Remote File Inclusion (CWE-98) vulnerability. Its CVSS base score is 7.5 (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).
Deeper analysis
CVE-2026-25326 is an Improper Control of Filename for Include/Require Statement in PHP Program vulnerability, classified under CWE-98, that enables PHP Local File Inclusion in the CMSMasters Content Composer WordPress plugin (cmsmasters-content-composer). Despite being labeled as a PHP Remote File Inclusion issue in some descriptions, it specifically allows local file inclusion. The vulnerability affects all versions of the plugin from n/a through 1.4.5 and was published on 2026-02-19.
Exploitation requires network access (AV:N), high attack complexity (AC:H), low privileges (PR:L), and no user interaction (UI:N), with an unchanged scope (S:U). A low-privileged attacker, such as an authenticated WordPress user, can leverage this to achieve high impacts on confidentiality, integrity, and availability (C:H/I:H/A:H), resulting in a CVSS v3.1 base score of 7.5. This could allow reading sensitive local files or, depending on server configuration, potential code execution.
The Patchstack advisory provides details on this local file inclusion vulnerability in CMSMasters Content Composer version 1.4.5; security practitioners should consult https://patchstack.com/database/Wordpress/Plugin/cmsmasters-content-composer/vulnerability/wordpress-cmsmasters-content-composer-plugin-1-4-5-local-file-inclusion-vulnerability?_s_id=cve for mitigation guidance, such as updating the plugin or applying available patches.
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2026-8333
Vulnerability details
Improper Control of Filename for Include/Require Statement in PHP Program ('PHP Remote File Inclusion') vulnerability in cmsmasters CMSMasters Content Composer cmsmasters-content-composer allows PHP Local File Inclusion.This issue affects CMSMasters Content Composer: from n/a through <= 1.4.5.
- CWE(s)
Related Threats
MITRE ATT&CK Enterprise TechniquesAI
Why these techniques?
LFI in public-facing WordPress plugin directly maps to exploitation of web apps (T1190) and arbitrary local file reads (T1005); potential RCE is config-dependent and indirect.
CVEs Like This One
Affected Assets
Mitigating Controls
Mitigating Controls (NIST 800-53 r5) AI
Directly remediates the PHP Local File Inclusion flaw in the CMSMasters Content Composer plugin through timely identification, reporting, and patching.
Prevents exploitation of improper filename control in PHP include/require by validating inputs for expected syntax and semantics to block path traversal.
Mitigates LFI by enforcing secure configuration settings like PHP open_basedir restrictions to limit local file access scope.