What the vulnerability does
01Description
The everviz plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the `everviz` shortcode attributes in versions up to, and including, 1.1. This is due to the plugin not properly sanitizing user input or escaping output when building a `<div id=...>` from the `type` and `hash` 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
The Everviz Charts, Maps and Tables plugin contains a cross-site scripting (XSS) vulnerability in versions up to 1.1. An authenticated user with low privileges can inject malicious scripts that execute in other users' browsers, potentially affecting site visitors across the platform. The vulnerability requires network access but no user interaction from the victim.
What an attacker can do
03Attacker Capabilities
Inject malicious JavaScript that runs in other users' browsers and affects site visitors.
Potential impact on your site
04Site Impact
Visitors and other users may have their sessions hijacked, credentials stolen, or be redirected to malicious sites.
Conditions required to exploit
05Prerequisites
Attacker must have a low-privilege authenticated account on the site.
Key dates
06Disclosure timeline
November 18, 2025
CVE published
April 8, 2026
Record updated
