Stored Cross-Site Scripting Vulnerability in OpenMage Magento-LTS
CVE-2023-54423

8.3HIGH

Key Information:

Vendor

Openmage

Status
Magento-lts
Vendor
CVE Published:
13 November 2026

What is CVE-2023-54423?

OpenMage's Magento-LTS prior to version 20.2.0 includes a stored cross-site scripting vulnerability stemming from the TinyMCE WYSIWYG editor's inadequacy in filtering scripts from specially crafted HTML tags. This flaw enables attackers to inject an img element with a harmful onmouseover attribute, which may execute scripts in users' browsers when they view the content rendered with the compromised editor. This vulnerability highlights the critical need for maintaining up-to-date software and vigilant web security practices.

Affected Version(s)

magento-lts 0 < 20.2.0

magento-lts 20.2.0

References

https://github.com/OpenMage/magento-lts/security/advisori...
vendor-advisory
https://www.vulncheck.com/advisories/openmage-magento-lts...
third-party-advisory

CVSS V4

Score:
8.3
Severity:
HIGH
Confidentiality:
High
Integrity:
Low
Availability:
Low
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
Unknown

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

halitAKAYDIN
.