What the vulnerability does
01Description
The Link Hopper plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the ‘hop_name’ parameter in all versions up to, and including, 2.5 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with administrator-level access, 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
Link Hopper versions 2.5 and earlier contain a cross-site scripting vulnerability that allows high-privilege users to inject malicious scripts. The vulnerability requires high attack complexity and does not require user interaction. While the impact is limited to low-level confidentiality and integrity compromise, the scope is changed, meaning the vulnerability may affect other components or users beyond the immediate target.
What an attacker can do
03Attacker Capabilities
Inject malicious scripts that affect other users or components of the application.
Potential impact on your site
04Site Impact
High-privilege accounts could be abused to inject scripts affecting site integrity or user data, though impact is limited.
Conditions required to exploit
05Prerequisites
Attacker must have high-level privileges (e.g., admin or editor role) and network access to the application.
Key dates
06Disclosure timeline
February 14, 2026
CVE published
April 8, 2026
Record updated
