The vulnerability CVE-2026-39681 in ApusTheme Homeo arises from improper validation or control of filenames used in PHP include or require statements. This allows a local file inclusion attack, where an attacker with limited privileges can cause the application to include arbitrary files from the server. The vulnerability affects Homeo versions up to 1.2.59. The CVSS 3.1 base score is 7.5, indicating high severity, with network attack vector, high impact on confidentiality, integrity, and availability, and requiring low privileges but high attack complexity. No vendor advisory or patch information is currently available.

Successful exploitation of this vulnerability could lead to disclosure of sensitive files, modification of application behavior, or denial of service, impacting confidentiality, integrity, and availability of the affected system. Given the high CVSS score and the nature of local file inclusion, attackers could leverage this to escalate privileges or execute arbitrary code depending on the server environment and configuration.

Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is released, users should consider disabling or restricting access to the vulnerable theme or applying manual code review and hardening to prevent inclusion of arbitrary files. Avoid running the application with unnecessary privileges and monitor for suspicious activity related to file inclusion attempts.