CVE-2026-57725 is a stored cross-site scripting (XSS) vulnerability in Themeum Kirki, affecting versions up to and including 6.0.11. The issue arises from improper neutralization of input during web page generation, allowing malicious scripts to be stored and executed in users' browsers. The vulnerability has a CVSS 3.1 score of 7.1, indicating high severity with network attack vector, low attack complexity, no privileges required, user interaction required, and impacts on confidentiality, integrity, and availability. No patch or official remediation level has been disclosed at this time.

Successful exploitation of this vulnerability could allow an attacker to execute arbitrary scripts in the context of the victim's browser, potentially leading to data theft, session hijacking, or other malicious actions impacting confidentiality, integrity, and availability of user data. The vulnerability requires user interaction but no privileges or authentication, increasing its risk profile.

Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until a fix is available, users should apply standard mitigations for stored XSS vulnerabilities such as input validation and output encoding where possible. Monitor official Themeum advisories for updates and patches.