Cross-Site Scripting Vulnerability in CodePen Embed Block by Chris Coyier
CVE-2025-50023

5.9MEDIUM

Key Information:

Vendor

WordPress
Status
Codepen Embed Block
Vendor
CVE Published:
20 June 2025

What is CVE-2025-50023?

A Cross-Site Scripting (XSS) vulnerability in the CodePen Embed Block plugin allows attackers to inject malicious scripts into a web page. This issue arises due to improper neutralization of user input during the generation of web pages. The vulnerability affects all versions from n/a to 1.1.1, enabling potential stored XSS attacks that could execute arbitrary scripts in users' browsers when they visit affected sites.

Affected Version(s)

CodePen Embed Block <= 1.1.1

References

https://patchstack.com/database/wordpress/plugin/codepen-...
vdb-entry

CVSS V3.1

Score:
5.9
Severity:
MEDIUM
Confidentiality:
Low
Integrity:
Low
Availability:
Low
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
High
User Interaction:
Required
Scope:
Changed

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

Nabil Irawan (Patchstack Alliance)
.