CVE-2023-54423
Received Received - Intake

Stored XSS in OpenMage Magento-LTS via TinyMCE WYSIWYG Editor

Publication date: 2026-11-13

Last updated on: 2026-11-13

Assigner: VulnCheck

Description
OpenMage magento-lts before 20.2.0 contains a stored cross-site scripting vulnerability because the TinyMCE WYSIWYG editor fails to filter scripts in specially crafted HTML tags. Attackers can inject an img element with a malicious onmouseover attribute to execute scripts in the browsers of users viewing the rendered content.

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Meta Information

Published
2026-11-13
Last Modified
2026-11-13
Generated
2026-11-13
AI Q&A
2026-11-13
EPSS Evaluated
N/A
NVD
CVE-2023-54423
EUVD
EUVD-2023-60729

Affected Vendors & Products

Showing 2 associated CPEs
Vendor Product Version / Range
openmage magento_lts to 20.2.0 (exc)
openmage magento-lts to 20.2.0 (exc)

Helpful Resources

Exploitability

CWE
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KEV
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CWE ID Description
CWE-82 The web application does not neutralize or incorrectly neutralizes scripting elements within attributes of HTML IMG tags, such as the src attribute.

Attack-Flow Graph

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Executive Summary

This vulnerability is a stored cross-site scripting (XSS) issue in OpenMage Magento-LTS versions before 20.2.0. The TinyMCE WYSIWYG editor fails to properly filter scripts in HTML tags. Attackers can exploit this by injecting an img element with a malicious onmouseover attribute, which executes scripts when users view the content.

Impact Analysis

This vulnerability allows attackers to inject malicious scripts into web pages viewed by users. If exploited, it could lead to unauthorized actions on behalf of users, theft of sensitive data like session cookies, or defacement of web content. Users with administrative privileges are particularly at risk.

Compliance Impact

This vulnerability could lead to non-compliance with GDPR or HIPAA by exposing user data to unauthorized parties. GDPR requires protection against data breaches, while HIPAA mandates safeguards for protected health information. Exploitation of this XSS flaw may result in data leaks, triggering regulatory penalties.

Mitigation Strategies

Upgrade OpenMage magento-lts to version 20.2.0 or later to address the stored XSS vulnerability in the TinyMCE WYSIWYG editor.

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