CVE-2023-54423

OpenMage magento-lts before 20.2.0 Stored XSS via TinyMCE WYSIWYG Editor

Published Nov 13, 2026 CVSS 4.0 · 8.3 High EPSS n/a KEV · Not listed
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.

Analysis

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Remediation

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Tracking

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Advisories

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History
Type Values Removed Values Added
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.
Title OpenMage magento-lts before 20.2.0 Stored XSS via TinyMCE WYSIWYG Editor
Weaknesses CWE-82
References
Metrics cvssV3_1

{'score': 7.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:H/I:L/A:L'}

cvssV4_0

{'score': 8.3, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:P/VC:H/VI:L/VA:L/SC:H/SI:L/SA:L'}

Subscriptions

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Weaknesses
  • CWE-82

    Improper Neutralization of Script in Attributes of IMG Tags in a Web Page

Sources

Status
PUBLISHED
Assigner
VulnCheck
Published
Updated
Nov 13, 2026, 9:37 AM
Reserved
Nov 12, 2026, 8:47 PM

No data.