Vtiger CRM 8.4.0 contains a reflected cross-site scripting (XSS) vulnerability in the MailManager module. Improper handling of user-controlled input in the _folder parameter allows a specially crafted, double URL-encoded payload to be reflected and executed in the context of an authenticated user s session.
https://www.vtiger.com/open-source-crm/
https://www.simonjuguna.com/cve-2025-70936-reflected-xss-vulnerability-in-vtiger-crm-v8-4-0/