Internet passwords stored in Person documents in the Domino® Directory created using the "Add Person" action on the People & Groups tab in the Domino® Administrator are secured using a cryptographically weak hash algorithm. This could enable attackers with access to the hashed value to determine a user's password, e.g. using a brute force attack. This issue does not impact Person documents created through user registration https://help.hcltechsw.com/domino/10.0.1/admin/conf_userregistration_c.html .
HCL iNotes is susceptible to a Reflected Cross-site Scripting (XSS) vulnerability caused by improper validation of user-supplied input supplied with a form POST request. A remote attacker could exploit this vulnerability using a specially-crafted URL to execute script in a victim's web browser within the security context of the hosting web site and/or steal the victim's cookie-based authentication credentials.
HCL iNotes is susceptible to a link to non-existent domain vulnerability. An attacker could use this vulnerability to trick a user into supplying sensitive information such as username, password, credit card number, etc.
HCL iNotes is susceptible to a Broken Password Strength Checks vulnerability. Custom password policies are not enforced on certain iNotes forms which could allow users to set weak passwords, leading to easier cracking.