CVE-2026-0594 describes a reflected cross-site scripting vulnerability in the mallsop List Site Contributors WordPress plugin. The issue is due to improper neutralization of input during web page generation, specifically insufficient sanitization and escaping of the 'alpha' parameter. This allows unauthenticated attackers to inject malicious scripts that execute when a user clicks a crafted link. The vulnerability affects versions up to and including 1.1.8. The CVSS 3.1 base score is 6.1 (medium), with attack vector network, low attack complexity, no privileges required, user interaction required, scope changed, and low impact on confidentiality and integrity, no impact on availability.

Successful exploitation can lead to execution of arbitrary scripts in the context of the victim's browser session, potentially resulting in information disclosure or manipulation of user interactions on affected sites. The impact is limited to confidentiality and integrity with no direct availability impact. The vulnerability requires user interaction and does not require authentication.

Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is available, users should avoid clicking on suspicious links that may exploit this vulnerability. Monitoring vendor channels for updates or patches is recommended. No official patch or workaround information is currently provided.