The vulnerability CVE-2025-46491 affects the Multi-Column Taxonomy List plugin by Matthew Muro. It is a stored cross-site scripting (XSS) issue caused by improper neutralization of input during web page generation, which can lead to the injection and execution of malicious scripts. The affected versions include all releases up to version 1.5. The CVSS v3.1 base score is 6.5, reflecting network attack vector, low attack complexity, requiring privileges and user interaction, and impacts on confidentiality, integrity, and availability at a low to medium level. No patch or official fix information is currently provided by the vendor or other sources.

Successful exploitation of this vulnerability could allow an attacker with privileges to inject malicious scripts that execute in the context of other users' browsers, potentially leading to data theft, session hijacking, or other client-side impacts. The CVSS vector indicates partial impacts on confidentiality, integrity, and availability. However, no known exploits have been reported in the wild.

Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is released, users should consider restricting privileges to trusted users only and apply web application firewall rules to detect and block XSS attempts if possible. Monitor vendor channels for updates regarding patches or official mitigations.