The vulnerability CVE-2026-25394 affects the Fitness FSE plugin by sparklewpthemes, where missing authorization checks allow users with limited privileges to perform actions beyond their intended access level. This incorrect access control can lead to integrity violations within the affected versions up to 1.0.6. The CVSS 3.1 base score is 4.3, reflecting a network attack vector with low complexity and no user interaction required, but limited impact confined to integrity. No patch or official remediation guidance is currently provided, and no exploits are known in the wild.

The impact is limited to integrity as unauthorized modification of data or settings may be possible due to missing authorization checks. There is no impact on confidentiality or availability. Since no known exploits exist in the wild, the immediate risk is moderate but should be addressed to prevent potential misuse.

Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is released, restrict access to trusted users only and monitor for unusual activity related to Fitness FSE plugin usage. Avoid granting unnecessary privileges to users in environments running affected versions.