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6.1

Optimole Plugin for WordPress Allows Attackers to Execute Malicious Code

CVE-2026-5226
Summary

The Optimole plugin for WordPress, used to optimize images, has a security flaw that could allow attackers to execute malicious code on your website. If a user clicks on a link that contains malicious code, it could harm your site or steal sensitive information. Update to the latest version of the plugin to protect your site.

Original title
The Optimole – Optimize Images in Real Time plugin for WordPress is vulnerable to Reflected Cross-Site Scripting via URL paths in versions up to, and including, 4.2.3 This is due to insufficient ou...
Original description
The Optimole – Optimize Images in Real Time plugin for WordPress is vulnerable to Reflected Cross-Site Scripting via URL paths in versions up to, and including, 4.2.3 This is due to insufficient output escaping on user-supplied URL paths in the get_current_url() function, which are inserted into JavaScript code via str_replace() without proper JavaScript context escaping in the replace_content() function. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that execute if they can successfully trick a user into performing an action such as clicking on a link.
nvd CVSS3.1 6.1
Vulnerability type
CWE-79 Cross-site Scripting (XSS)
Published: 11 Apr 2026 · Updated: 11 Apr 2026 · First seen: 11 Apr 2026