CVE-2026-57711 describes a stored cross-site scripting (XSS) vulnerability in the SupportCandy plugin by PSM Plugins. The vulnerability arises from improper input neutralization during web page generation, which allows an attacker with low privileges and requiring user interaction to inject malicious scripts. The vulnerability affects SupportCandy versions up to 3.4.8. Exploitation could lead to partial confidentiality, integrity, and availability impacts. No official patch or remediation guidance is currently provided by the vendor or in the advisory.

Successful exploitation of this stored XSS vulnerability could allow an attacker to execute arbitrary scripts in the context of the affected web application, potentially leading to theft of user credentials, session hijacking, or manipulation of displayed content. The CVSS vector indicates network attack vector, low attack complexity, low privileges required, and user interaction needed, with impacts on confidentiality, integrity, and availability rated as low to low-medium. No known exploits are reported in the wild at this time.

Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Since no official fix or temporary mitigation is provided, users should monitor vendor communications for updates. Until a patch is available, consider restricting user input or applying web application firewall (WAF) rules to detect and block malicious payloads related to XSS in SupportCandy. Avoid granting unnecessary privileges to users who can submit input that is rendered by the plugin.