CVE-2024-39666Public exploitNetwork attack vector

Stored script execution via unescaped cart text

Published Aug 18, 2024 · Updated Apr 28, 2026

Stored XSS in Automattic WooCommerce 9.1.2 and earlier allows remote authenticated users to execute scripts in visitors' browsers. The loop add-to-cart template outputs the product add_to_cart_text() value without escaping, allowing a plugin or theme to pass user-controlled content through the woocommerce_product_add_to_cart_text filter. Exploitation requires administrator access, a plugin or theme that exposes the filter to user input, and a multisite installation or disabled unfiltered_html; the script runs when the affected listing is viewed.

CVSS severity5.9
Medium
EPSS probability0.40%
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 Automattic WooCommerce 9.1.2 and earlier allows remote authenticated users to execute scripts in visitors' browsers. The loop add-to-cart template outputs the product add_to_cart_text() value without escaping, allowing a plugin or theme to pass user-controlled content through the woocommerce_product_add_to_cart_text filter. Exploitation requires administrator access, a plugin or theme that exposes the filter to user input, and a multisite installation or disabled unfiltered_html; the script runs when the affected listing is viewed.

The record

CVE
CVE-2024-39666
Published
Aug 18, 2024
Updated
Apr 28, 2026
Vendor
Automattic
Product
WooCommerce
Classifications
CWE-79, T1059.007
Attack vector
network
Privileges
admin

Timeline

How it unfolded

  1. Aug 18, 2024CVE publishedPublication date reported by the CVE source.
  2. Apr 28, 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=n/a <=9.1.2 changes=[{"at":"9.1.3","status":"unaffected"}]

What conditions does exploitation require?

Attack vectornetwork
Required privilegesadmin

What is affected?

Automattic · WooCommerceversion=n/a <=9.1.2 changes=[{"at":"9.1.3","status":"unaffected"}]

Published CVSS scores

5.9PatchstackCVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:L

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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