This vulnerability in wpdesk Flexible PDF Coupons (versions before 1.10.3) involves improper input neutralization during web page generation, leading to stored cross-site scripting (XSS). An attacker with low privileges can inject malicious scripts that execute when viewed by other users, potentially impacting confidentiality, integrity, and availability. The CVSS 3.1 vector indicates network attack vector, low attack complexity, required privileges are low, user interaction is required, and the scope is changed.

Successful exploitation could allow an attacker to execute arbitrary scripts in the context of the affected application, potentially leading to information disclosure, modification of data, or disruption of service. The impact affects confidentiality, integrity, and availability to a limited extent as indicated by the CVSS vector. No known exploits have been reported, so active exploitation is not confirmed.

Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Since no official patch or advisory is provided in the data, users should monitor wpdesk communications for updates. Until a fix is available, consider restricting plugin usage to trusted users and limiting exposure to untrusted inputs to reduce risk.