The vulnerability CVE-2025-31083 in ZEEN101 Leaky Paywall is a stored cross-site scripting (XSS) issue caused by improper neutralization of input during web page generation. This flaw affects all versions up to 4.21.7, allowing attackers with limited privileges to inject malicious scripts that persist and execute in other users' browsers. The CVSS 3.1 base score of 6.5 reflects a medium severity with network attack vector, low attack complexity, requiring privileges and user interaction, and impacts on confidentiality, integrity, and availability. No patch or vendor advisory is currently available, and no exploits are known in the wild.

Successful exploitation of this vulnerability could allow an attacker with limited privileges to execute stored malicious scripts in the context of other users, potentially leading to partial compromise of confidentiality, integrity, and availability of the affected system. The medium CVSS score reflects these moderate impacts. No known active exploitation has been reported.

Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is released, users should exercise caution with user inputs and consider implementing temporary input sanitization or filtering measures if feasible. Monitor for vendor updates and apply patches promptly once available.