External risk intelligence

Feed KuantoKusta WooCommerce Plugin SQL Injection Vulnerability

CVE advisorySeverity: CRITICAL (CVSS 9.3)

CVE-2026-39441

An unauthenticated SQL injection vulnerability exists in the Feed KuantoKusta for WooCommerce plugin, allowing attackers to inject malicious SQL commands. This could potentially lead to unauthorized access or manipulation of sensitive data stored within the WooCommerce system. The vulnerability is network-exposed, mean

4Halo Surface Signal

SQL Injection

External exposure likelihood

Halo Surface Signal score for CVE-2026-39441

This vulnerability affects a WooCommerce plugin, which is specifically designed to be part of a web application's public-facing storefront. As a plugin for an e-commerce platform, it is expected to be reachable via the internet as part of the standard web application deployment.

PCI scan relevance

PCI Relevance for CVE-2026-39441

Yes

CVE-2026-39441 — Halo PCI Relevance: Yes. Under typical PCI ASV external scan criteria, this issue may be flagged for scan prioritization.

Unauthenticated SQL injection in Feed KuantoKusta for WooCommerce versions up to 5.3 can allow attackers to extract sensitive data. This vulnerability can lead to automatic failure in PCI ASV scans.

Scan-prioritization guidance only—not a PCI DSS certification or ASV attestation.

CVSS vector

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

Horizon Alert

Summary of the vulnerability and why it matters

A critical vulnerability has been identified in a popular e-commerce plugin that allows for unauthenticated SQL injection, potentially impacting data integrity and availability. While the full scope of business impact is still being assessed, its nature as a publicly accessible plugin warrants attention.

  • Unauthenticated attackers can inject malicious SQL code.
  • Affects an e-commerce plugin, suggesting potential external exposure.
  • Confirm relevance and assess exposure to sensitive business data.

Attack Path

How an attacker could exploit the issue

An unauthenticated attacker can exploit this vulnerability by sending specially crafted input to the Feed KuantoKusta for WooCommerce plugin. This allows them to inject malicious SQL commands, potentially leading to unauthorized data access or manipulation within the WooCommerce system.

  • No authentication required.
  • Triggered by malicious input to the plugin.
  • Risk of unauthorized data access.

Live Threat

Current exploitation, exposure, and threat context

This unauthenticated SQL injection vulnerability in the Feed KuantoKusta for WooCommerce plugin could allow an attacker to access or manipulate sensitive data stored in the WooCommerce database. The vulnerability is exposed via the network, meaning it could be exploited by an attacker without any prior authentication or interaction from a legitimate user, potentially leading to data breaches or service disruptions.

  • Database data could be accessed.
  • Network access enables exposure.
  • Unauthorized data access or manipulation.

Priority actions

Operational Fix

Recommended remediation, mitigation, and detection steps

This critical vulnerability in the Feed KuantoKusta for WooCommerce plugin requires immediate attention from the team responsible for the WooCommerce storefront and its extensions. The first step is to identify all instances of this plugin, determine their internet reachability and business criticality, and then locate the accountable owner before planning remediation.

  • WooCommerce storefront owners
  • Verify plugin reachability and criticality
  • Coordinate vendor patch or removal

Frequently asked questions

What is Feed KuantoKusta for WooCommerce?

It is a software plugin designed to integrate WooCommerce stores with the KuantoKusta e-commerce platform. It enables store owners to automatically generate and export product feeds for listing on the marketplace. By streamlining how items appear to shoppers, it acts as a functional bridge between a business's local database and the broader online retail ecosystem.

What does CVE-2026-39441 mean by SQL Injection?

This vulnerability, classified as CWE-89, occurs when the plugin fails to properly sanitize user-supplied data before incorporating it into database queries. Because the application blindly trusts incoming requests, an attacker can substitute legitimate commands with malicious SQL statements. This manipulation allows unauthorized actors to trick the underlying database into revealing sensitive information or altering its stored records.

How is this vulnerability triggered?

An attacker initiates this vulnerability by sending specifically crafted network requests to the plugin. Since no user account or login session is needed, anyone with connectivity to the site can attempt to send this malicious input. It is important to note that simply visiting the website or viewing a product page does not trigger the bug; the exploit requires the submission of structured data specifically designed to interfere with the database queries the plugin performs.

Is my site at risk if I use this plugin?

If you are running the affected versions, your environment is likely reachable via the internet. According to Halo Surface Signal, because this plugin powers a public-facing e-commerce storefront, it is expected to be accessible to anyone on the web. This design inherently increases the risk, as the database layer supporting your online store is directly exposed to potential external queries that bypass standard access controls.

When should I take action for this vulnerability?

You should prioritize assessing your systems immediately. Begin by locating every installation of the plugin across your infrastructure to determine which are active and internet-facing. Once you have identified your footprint, coordinate with your technical team to either apply an available vendor update or remove the plugin if a secure version is not yet obtainable to protect your database integrity.

References

Sources and related resources

Primary sources: NVD, CVE.org.

NVDPublished