Krayin CRM 2.2.4 contains a missing authentication vulnerability in the installer middleware that allows unauthenticated remote attackers to overwrite the primary administrator account by sending a crafted HTTP POST request with the X-Requested-With: XMLHttpRequest header to bypass the CanInstall middleware redirect check. Attackers can supply arbitrary name, email, and password values to the admin-config-setup endpoint, which performs an unauthenticated updateOrInsert targeting the hardcoded administrator user ID, enabling full administrative access to all CRM data.

Krayin CRM through 2.2.3 contains an insecure direct object reference vulnerability in LeadController, PersonController, OrganizationController, QuoteController, and ActivityController that allows authenticated users to edit, update, or delete records owned by other users. Attackers can modify CRM records and reassign ownership by exploiting missing record-level ownership validation in edit, update, and destroy methods.

An issue in Krayin CRM v.2.1.5 and fixed in v.2.1.6 allows a remote attacker to execute arbitrary code via the compose email function

Krayin CRM v2.2.x was discovered to contain a SQL injection vulnerability via the rottenlead parameter at /Lead/LeadDataGrid.php.

Krayin CRM through 2.2.6 contains a stored client-side template injection vulnerability that allows authenticated attackers to execute arbitrary JavaScript in other users' browsers by injecting Vue.js template expressions into the person name field. Attackers can craft a person name containing double-brace template syntax that reaches the Vue template compiler, enabling prototype chain traversal to retrieve the Function constructor and execute attacker-supplied JavaScript in the application origin for every user who views the affected person record.

Krayin CRM through 2.2.6 contains a stored client-side template injection vulnerability that allows authenticated attackers to execute arbitrary JavaScript in other users' browsers by injecting Vue.js template expressions into the web form description field. Attackers can craft a web form description containing double-brace template syntax that reaches the Vue template compiler, enabling prototype chain traversal to retrieve the Function constructor and execute attacker-supplied JavaScript in the application origin for every user who views the affected web form.