What the vulnerability does
01Description
The ZoomifyWP Free plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'filename' parameter of the 'zoomify' shortcode in all versions up to, and including, 1.1 due to insufficient input sanitization and output escaping on user supplied 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
ZoomifyWP Free versions 1.1 and earlier contain a cross-site scripting (XSS) vulnerability that allows authenticated users to inject malicious scripts affecting other users. The vulnerability has a changed scope, meaning the impact extends beyond the vulnerable component itself. Low-privileged users can exploit this without user interaction to compromise site integrity and confidentiality.
What an attacker can do
03Attacker Capabilities
Inject malicious scripts that execute in other users' browsers and alter site content or steal data.
Potential impact on your site
04Site Impact
Authenticated users can inject scripts affecting other visitors; site content and user data may be compromised.
Conditions required to exploit
05Prerequisites
Attacker must have a low-privileged account (e.g., subscriber or contributor role) on the site.
Key dates
06Disclosure timeline
February 14, 2026
CVE published
April 8, 2026
Record updated
