CVE-2026-39514 is an unauthenticated cross-site scripting (XSS) vulnerability affecting Cozmoslabs Paid Member Subscriptions plugin versions up to 2.17.3. The issue stems from improper neutralization of input during web page generation (CWE-79), which can allow attackers to execute arbitrary scripts in the context of the affected web application. The vulnerability has a CVSS 3.1 base score of 7.1, 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 published as of the data provided.

Successful exploitation of this vulnerability could allow an unauthenticated attacker to execute arbitrary scripts in the context of the affected application, potentially leading to partial compromise of user confidentiality, integrity, and availability. This could result in theft of user data, session hijacking, or other malicious actions within the scope of the web application.

Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is released, users should consider applying any available workarounds from the vendor or restrict access to vulnerable endpoints if possible. Monitor vendor communications closely for updates.