What’s Vulnerable › Vulnerabilities

CVE-2026-5226: Optimole <= 4.2.3 - Reflected Cross-Site Scripting via Page Profiler URL

• Severity: medium (CVSS 6.1 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.5% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-04-11 · updated 2026-06-17
• Weakness: CWE-79

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.

Affected products

• Optimole – Optimize Images in Real Time: through 4.2.3

References

• https://plugins.trac.wordpress.org/browser/optimole-wp/tags/4.2.1/inc/admin.php#L1012
• https://plugins.trac.wordpress.org/browser/optimole-wp/tags/4.2.1/inc/manager.php#L459
• https://plugins.trac.wordpress.org/browser/optimole-wp/tags/4.2.1/inc/manager.php#L542
• https://plugins.trac.wordpress.org/browser/optimole-wp/trunk/inc/admin.php#L1012
• https://plugins.trac.wordpress.org/browser/optimole-wp/trunk/inc/manager.php#L459
• https://plugins.trac.wordpress.org/browser/optimole-wp/trunk/inc/manager.php#L542
• https://plugins.trac.wordpress.org/changeset/3498040/optimole-wp/trunk/inc/manager.php
• https://plugins.trac.wordpress.org/changeset?old_path=%2Foptimole-wp/tags/4.2.3&new_path=%2Foptimole-wp/tags/4.2.4
• https://www.wordfence.com/threat-intel/vulnerabilities/id/112cea93-fa4b-4692-8c8b-e74255f61939?source=cve

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