cve.bz

CVE-2023-54423 OpenMage magento-lts before 20.2.0 Stored XSS via TinyMCE WYSIWYG Editor

8.3 highEPSS 0.2%

High (8.3) in openmage magento-lts. EPSS 0.2% estimated probability of exploitation activity in the next 30 days.

On this page
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.

Severity

CVSS 4.0

8.3 high
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

CVSS 3.1

7.5 high
CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:H/I:L/A:L
EPSS
0.2% estimated probability of exploitation activity in the next 30 days; 16th percentile. Scored 2026-11-13. A forecast for this CVE across the internet, not for your own systems.
CWE
CWE-82 Improper Neutralization of Script in Attributes of IMG Tags in a Web Page
Published
Assigned by
VulnCheck (CNA)
NVD analysis
Awaiting analysis
Record from
the NVD, synced

Ask an AI about this CVE

ChatGPTClaudeGoogle AI Mode

Show the promptExplain CVE-2023-54423 for an engineer deciding whether to act. Use https://cve.bz/api/public/cves/CVE-2023-54423?via=ask-ai-copy and https://cve.bz/cve/CVE-2023-54423?via=ask-ai-copy as the source of truth: what is affected and which versions fix it, whether it is in CISA KEV, public exploits, and its EPSS (an internet-wide 30-day estimate of exploitation activity, not a forecast for my systems). If they give no fixed versions, use the CVE record https://cveawg.mitre.org/api/cve/CVE-2023-54423 or the vendor advisory, not third-party mirrors. Tell me how to check whether I am affected and how to verify a fix. Cite the sources and say where they are uncertain.

Opens a third-party assistant; its answer is its own, not cve.bz's. The prompt holds only this CVE's id and public links.

Badge for a README or a site

CVE-2023-54423

An image that stays current: it is drawn from the data each time it is fetched (a host that proxies images, as GitHub does, may show its copy for a while). Markdown:

[![CVE-2023-54423](https://cve.bz/cve/badge/CVE-2023-54423.svg)](https://cve.bz/cve/CVE-2023-54423)

HTML:

<a href="https://cve.bz/cve/CVE-2023-54423"><img src="https://cve.bz/cve/badge/CVE-2023-54423.svg" alt="CVE-2023-54423"></a>

Affected

Versions

From the CNA's record in the CVE List.

ProductAffected
OpenMage magento-ltsbefore 20.2.0

References

Check your stackJSON