CVE-2026-28143 is an unauthenticated Cross Site Scripting (XSS) vulnerability affecting Forminator versions up to and including 1.56.0. The vulnerability allows remote attackers to execute arbitrary scripts in the context of the victim's browser without requiring authentication. The CVSS 3.1 base score is 7.1, reflecting network attack vector, low attack complexity, no privileges required, user interaction required, and impacts on confidentiality, integrity, and availability. No vendor advisory or patch information is currently available.

Successful exploitation could allow attackers to execute arbitrary scripts in users' browsers, potentially leading to data theft, session hijacking, or other malicious actions affecting confidentiality, integrity, and availability. The vulnerability does not require authentication, increasing the risk of exploitation. However, no known exploits in the wild have been reported.

Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until a patch is available, consider applying web application firewalls or input validation controls to mitigate potential exploitation. Monitor official vendor channels for updates.