🚨 CVE-2026-86241
A weakness has been identified in liufee FeehiCMS up to 2.1.1. This impacts an unknown function of the file environments/prod/backend/config/main-local.php of the component Cookie Validation. This manipulation of the argument cookieValidationKey causes use of hard-coded cryptographic key . The attack is possible to be carried out remotely. The exploit has been made available to the public and could be used for attacks. The project was informed of the problem early through an issue report but has not responded yet.
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GitHub
FeehiCMS Empty cookieValidationKey in Production Environment · Issue #96 · liufee/cms
FeehiCMS 2.1.1 ships with an empty cookieValidationKey in all environment templates, including production. The Yii2 framework uses this key to sign HTTP cookies via HMAC-SHA256, preventing tamperin...
September 7, 2026 40
