The vulnerability CVE-2025-46526 affects the My Custom Widgets plugin by janekniefeldt, specifically versions up to 2.0.5. It is a reflected Cross-site Scripting (XSS) flaw caused by improper neutralization of input during web page generation. This allows attackers to inject malicious scripts that execute when a user interacts with crafted web content. The CVSS 3.1 base score is 7.1, indicating high severity, with network attack vector, low attack complexity, no privileges required, user interaction required, scope changed, and impacts on confidentiality, integrity, and availability at low levels. There is no indication of an official patch or vendor advisory detailing remediation at this time.

Successful exploitation of this reflected XSS vulnerability can allow attackers to execute arbitrary scripts in the context of the victim's browser session. This can lead to partial compromise of confidentiality, integrity, and availability of affected systems or user data. However, no known exploits in the wild have been reported, and the impact is limited to the affected plugin versions.

Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is released, users should consider disabling or removing the affected plugin versions to mitigate risk. Additionally, applying web application firewall (WAF) rules that detect and block reflected XSS payloads may provide temporary protection.