What the vulnerability does
01Description
The Buy Now Plus – Buy Now buttons for Stripe plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'buynowplus' shortcode in all versions up to, and including, 1.0.2 due to insufficient input sanitization and output escaping on shortcode attributes. This makes it possible for authenticated attackers, with Contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.
Explanation of Vulnerability in Simple Terms
02Summary
Buy Now Plus — Payments with Stripe versions 1.0.2 and earlier contain a cross-site scripting (XSS) vulnerability. An attacker with low-level user privileges can inject malicious scripts that execute in other users' browsers, potentially stealing session tokens or performing actions on their behalf. The vulnerability affects the entire site scope due to how the application processes user input.
What an attacker can do
03Attacker Capabilities
Inject malicious scripts that run in other users' browsers and steal their session data or perform actions as them.
Potential impact on your site
04Site Impact
Any logged-in user with low privileges can compromise other users' accounts or sessions, including administrators.
Conditions required to exploit
05Prerequisites
Attacker must have a low-privilege user account on the site; no user interaction required from victims.
Key dates
06Disclosure timeline
January 28, 2026
CVE published
April 8, 2026
Record updated
