CVE-2026-108484: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') in WPManageNinja Best Payments Plugin for WP

This vulnerability in the WPManageNinja Best Payments Plugin for WordPress (wp-payment-form) is due to improper input sanitization during web page generation, leading to stored cross-site scripting (XSS). An attacker can inject malicious scripts that persist on the site and execute when other users access the affected pages. The issue affects all versions from initial release through 4.6.27. The CVSS 3.1 base score is 7.1, indicating a high severity with network attack vector, low attack complexity, no privileges required, user interaction required, and impacts on confidentiality, integrity, and availability.

Successful exploitation of this stored XSS vulnerability could allow an attacker to execute arbitrary scripts in the context of other users, potentially leading to theft of user credentials, session hijacking, or other malicious actions impacting confidentiality, integrity, and availability of the affected WordPress site.

Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. No official patch or fix information is provided in the available data. Users should monitor the WPManageNinja vendor advisories for updates and apply any released patches promptly. Until a fix is available, consider disabling or restricting access to the affected plugin functionality to mitigate risk.