CVE-2026-3574Public exploitNetwork attack vector

Administrator-level stored XSS via unescaped settings output

Published Apr 9, 2026 · Updated Apr 9, 2026

Stored XSS in Experto Dashboard for WooCommerce 1.0.4 and earlier allows remote authenticated users to inject scripts through settings. register_setting() accepts font-size and font-weight values without a sanitization callback, and field_callback() inserts them into printf output without esc_attr(). Administrator access is required, and execution is limited to multisite installations or sites with unfiltered_html disabled when a user opens the settings page.

CVSS severity4.4
Medium
EPSS probability0.21%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Stored XSS in Experto Dashboard for WooCommerce 1.0.4 and earlier allows remote authenticated users to inject scripts through settings. register_setting() accepts font-size and font-weight values without a sanitization callback, and field_callback() inserts them into printf output without esc_attr(). Administrator access is required, and execution is limited to multisite installations or sites with unfiltered_html disabled when a user opens the settings page.

The record

CVE
CVE-2026-3574
Published
Apr 9, 2026
Updated
Apr 9, 2026
Vendor
UX Design Experts
Product
Experto Dashboard for WooCommerce
Classifications
CWE-79, T1059.007
Attack vector
network
Privileges
admin

Timeline

How it unfolded

  1. Apr 9, 2026CVE publishedPublication date reported by the CVE source.
  2. Apr 9, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0 <=1.0.4

What conditions does exploitation require?

Attack vectornetwork
Required privilegesadmin

What is affected?

UX Design Experts · Experto Dashboard for WooCommerceversion=0 <=1.0.4

Published CVSS scores

4.4WordfenceCVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:L/I:L/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesadmin
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
T1059.007Command and Scripting Interpreter: JavaScript/JScript

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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