Experto Dashboard for WooCommerce <= 1.0.4 - Authenticated (Administrator+) Stored Cross-Site Scripting via 'Navigation Font Size' Setting
Strategic Overview
- Status
- Patched in 1.0.5
- Affected Plugin
- Experto Dashboard for WooCommerce
- Affected Version
<= 1.0.4- CVSS
- 4.4Medium
- Weakness type
- CWE-79 · Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
- CVE
CVE-2026-3574
At a glance
CVE-2026-3574 is a medium-severity Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in the Experto Dashboard for WooCommerce WordPress plugin, affecting versions <= 1.0.4. It carries a CVSS score of 4.4 (reachable over the network). Exploitation requires an authenticated account at Administrator level or above. The issue is fixed in version 1.0.5; sites on affected versions should update now. Disclosed April 2026, reported by Muhammad Nur Ibnu Hubab.
Vulnerability Overview
The Experto Dashboard for WooCommerce plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the plugin's settings fields (including 'Navigation Font Size', 'Navigation Font Weight', 'Heading Font Size', 'Heading Font Weight', 'Text Font Size', and 'Text Font Weight') in all versions up to and including 1.0.4. This is due to insufficient input sanitization (no sanitize callback in register_setting()) and missing output escaping (no esc_attr() in the field_callback() printf output) on user-supplied values. This makes it possible for authenticated attackers, with Administrator-level access and above, to inject arbitrary web scripts in the plugin settings page that will execute whenever a user accesses the settings page. This only affects multi-site installations and installations where unfiltered_html has been disabled.
Technical Analysis
The vector marks this flaw as remotely reachable over the network, and no interaction from a victim user.
CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Experto Dashboard for WooCommerce <= 1.0.4 carries this weakness at register_setting(), and reaching it takes an account at Administrator level or above. Cross-site scripting happens when input from a request is written into a page without being escaped for the context it lands in, so the browser parses attacker-supplied text as markup or script.
Injected script runs with the privileges of whoever views the affected page, which is how these flaws turn into administrator session theft, silent account creation or persistent backdoors in page content. For Experto Dashboard for WooCommerce the fix is 1.0.5: builds <= 1.0.4 are affected, anything from 1.0.5 onward is not.
Remediation
Update to version 1.0.5, or a newer patched version
How does WordSec protect against this?
An attacker needs Administrator access first, so the firewall sees the attempt as traffic from a logged-in account: WordSec's web application firewall inspects request payloads before WordPress loads them. None of that substitutes for the fix: Experto Dashboard for WooCommerce 1.0.5 closes this, and updating the plugin is the step that ends it.
- Firewall
- Alerts
External References
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