What the vulnerability does
01Description
The Welcart e-Commerce plugin for WordPress is vulnerable to Stored Cross-Site Scripting via settings in all versions up to, and including, 2.11.20 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with editor-level permissions and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. This only affects multi-site installations and installations where unfiltered_html has been disabled.
Explanation of Vulnerability in Simple Terms
02Summary
Welcart e-Commerce versions up to 2.11.20 contain a cross-site scripting (XSS) vulnerability that allows high-privilege users to inject malicious scripts. The vulnerability has a changed scope, meaning the impact can extend beyond the vulnerable component. An attacker with administrative or high-level access can craft input that executes in other users' browsers, potentially compromising site security or user data.
What an attacker can do
03Attacker Capabilities
Inject malicious scripts that execute in other users' browsers, potentially stealing data or performing actions on their behalf.
Potential impact on your site
04Site Impact
A compromised admin account could inject scripts affecting other administrators or site visitors, risking data theft or unauthorized actions.
Conditions required to exploit
05Prerequisites
Attacker must have high-level administrative privileges on the site; no user interaction required.
Key dates
06Disclosure timeline
September 10, 2025
CVE published
April 8, 2026
Record updated
