CVE-2026-82221: CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') in Metagauss RegistrationMagic

CVE-2026-82221 is an improper neutralization of input during web page generation (CWE-79) vulnerability in Metagauss RegistrationMagic. It allows unauthenticated attackers to perform cross-site scripting (XSS) attacks on affected versions (<= 6.0.9.8). The vulnerability is remotely exploitable without privileges and requires user interaction. The CVSS 3.1 vector indicates network attack vector, low attack complexity, no privileges required, user interaction required, scope changed, and low impact on confidentiality, integrity, and availability.

Successful exploitation of this vulnerability could allow an attacker to execute arbitrary scripts in the context of the affected web application, potentially leading to data disclosure, session hijacking, or other malicious actions impacting confidentiality, integrity, and availability. The vulnerability affects unauthenticated users and can be triggered remotely.

Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is released, consider applying web application firewall (WAF) rules to detect and block XSS payloads targeting RegistrationMagic. Avoid user interaction with suspicious links related to the affected application.