The vulnerability CVE-2026-27342 affects Mikado-Themes TopFit - Fitness and Gym WordPress Theme versions up to 1.9. It arises from improper control over the filename parameter used in PHP include or require statements, leading to PHP Local File Inclusion. This can allow attackers to include unintended files on the server, potentially resulting in remote code execution or data disclosure. The CVSS 3.1 base score is 8.1, reflecting high impact with network attack vector, high complexity, no privileges required, no user interaction, and full impact on confidentiality, integrity, and availability. No patch or vendor advisory is currently available, and the product is not a cloud service.

Successful exploitation of this vulnerability can lead to local file inclusion, which may allow attackers to execute arbitrary code, access sensitive files, or disrupt service. The high CVSS score indicates a severe impact on confidentiality, integrity, and availability of the affected system. No known exploits have been reported in the wild so far.

Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is available, users should consider disabling or removing the vulnerable theme or restricting access to affected files to mitigate risk. Monitor vendor channels for updates and apply patches promptly once released.