CVE-2026-84437
Received Received - Intake

Cross-Site Scripting in OpenCart Autocomplete Workflow

Publication date: 2026-09-02

Last updated on: 2026-09-02

Assigner: VulDB

Description
A vulnerability was found in OpenCart 4.1.0.3/4.1.0.4. The impacted element is an unknown function of the file catalog/controller/account/address.php of the component Autocomplete Workflow. The manipulation of the argument address_1 results in cross site scripting. It is possible to launch the attack remotely. The exploit has been made public and could be used. The vendor was contacted early about this disclosure but did not respond in any way.

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Meta Information

Published
2026-09-02
Last Modified
2026-09-02
Generated
2026-09-02
AI Q&A
2026-09-02
EPSS Evaluated
N/A
NVD
CVE-2026-84437
EUVD
EUVD-2026-69799

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
opencart opencart to 4.1.0.4 (inc)

Helpful Resources

Exploitability

CWE
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KEV
KEV Icon
CWE ID Description
CWE-94 The product constructs all or part of a code segment using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the syntax or behavior of the intended code segment.
CWE-79 The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users.

Attack-Flow Graph

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Executive Summary

This is a stored cross-site scripting (XSS) vulnerability in OpenCart versions 4.1.0.3 and 4.1.0.4. It allows a regular customer to inject malicious HTML or JavaScript into address fields like address_1. When an administrator accesses the order creation or editing page and selects the attacker's customer, the stored payload executes in the admin interface due to lack of proper sanitization.

Detection Guidance

Check OpenCart versions 4.1.0.3 and 4.1.0.4 for stored XSS in address fields. Review customer address inputs for suspicious HTML or JavaScript payloads. Inspect admin order creation/editing pages for unexpected script execution when selecting customers.

Impact Analysis

An attacker could steal session cookies, perform actions as an admin, or compromise order and customer management workflows. The attack requires a normal customer account and an admin opening the affected order workflow with the attacker's customer selected.

Compliance Impact

This vulnerability enables stored cross-site scripting (XSS) in OpenCart's admin interface, allowing attackers to inject malicious scripts into address fields. If exploited, it could lead to unauthorized access to sensitive data, session hijacking, or administrative actions performed by attackers. This poses risks to compliance with GDPR (data protection) and HIPAA (healthcare data privacy) by potentially exposing personal or protected health information through unauthorized access or manipulation.

Mitigation Strategies

Upgrade OpenCart to a patched version if available. Sanitize user inputs in address fields to block HTML/JS injection. Implement strict output encoding in admin interfaces. Monitor admin sessions for unusual activity.

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