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CVE-2023-54423

7.5, high

OpenMage magento-lts before 20.2.0 contains a stored cross-site scripting vulnerability because the TinyMCE WYSIWYG editor fails to…

NVD (opens in a new tab) CVE.org (opens in a new tab)
CVSS
7.5, high high CVSS v3.1
EPSS, next 30 days
0.2% higher than 16.4% of scored CVEs
Exploitation
No public evidence
Published
13 Nov 2026yesterday

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.

Details

Vendor
OpenMage
Product
magento-lts
Weakness
CWE-82 (opens in a new tab)
Status
Received
Updated
13 Nov 2026
Assigner
disclosure@vulncheck.com

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

References 2

Advisories 1

Other references 1

The kind is read from NVD's tags where present and from the shape of the URL otherwise, so treat it as a hint.

Other OpenMage CVEs

Every OpenMage CVE we hold

Same vendor in what we hold, not a known link between the flaws.

  • CVE-2026-128049 OpenMage magento-lts Cross-Site Request Forgery Vulnerability EPSS 0.2% 9, critical
  • CVE-2026-128041 OpenMage magento-lts Cross-Site Scripting Vulnerability EPSS 0.4% 8, high
  • CVE-2026-128044 OpenMage magento-lts before 20.18.2 and 21.x before 21.0.0-beta3 validates OAuth 1.0a oauth_callback URLs with a string-prefix check and… EPSS 0.2% 7.7, high

Beyond this page

Is CVE-2023-54423 in your network?

This page tells you how dangerous CVE-2023-54423 is out there. Whether it sits on one of your devices, only a scan of your own network can tell. That is what our systems do, every day, for the companies we protect.

  • EXYS7600 OCELOT

    Find it before attackers do

    Ocelot scans your network on a schedule and reports every vulnerability it finds by its CVE identifier, with its CVSS score and how many of your hosts are affected. A finding like CVE-2023-54423 comes with the devices to patch.

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  • EXYS7950 KONDRA

    Detect it if it's exploited

    Until the patch is applied, Kondra monitors your network, events and endpoints in real time. It keeps an inventory of the software installed on every endpoint, and its anomaly detection rules flag what an attacker does once inside.

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Check your exposure

Assembled from the NVD 2.0 API, the CISA Known Exploited Vulnerabilities Catalog and FIRST EPSS. Scores are as of our last collection on 14 Nov 2026, not the live upstream state.