CVE-2026-84070 is a cross-site scripting vulnerability (CWE-79) in IBM Guardium Data Protection 12.2. The vulnerability arises from improper neutralization of input during web page generation, enabling a remote authenticated attacker to execute arbitrary code. The CVSS 3.1 base score is 8.9, with attack vector network, low attack complexity, requiring privileges and user interaction, and impacts confidentiality, integrity, and availability with high severity. No vendor advisory or patch information is currently available.

Successful exploitation allows a remote authenticated attacker to execute arbitrary code within the context of the affected web application, potentially leading to compromise of sensitive data, alteration of information, and partial denial of service. The vulnerability affects confidentiality, integrity, and availability with high impact.

Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is available, limit access to the affected system to trusted users and monitor for suspicious activity. Avoid exposing the vulnerable interface to untrusted networks.