EUVD-2025-18926Severity by source
AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:L
PR:H due to admin access required; UI:R for victim interaction.
Primary rating from NVD.
CVSS VectorNVD
Lifecycle Timeline
3DescriptionCVE.org
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Chris Coyier CodePen Embed Block allows Stored XSS. This issue affects CodePen Embed Block: from n/a through 1.1.1.
AnalysisAI
Stored cross-site scripting in CodePen Embed Block plugin for WordPress allows authenticated users with high privileges to inject malicious scripts. This issue affects versions through 1.1.1 and has a low EPSS score with no public exploit identified.
Technical ContextAI
The vulnerability is a stored XSS (CWE-79) in the CodePen Embed Block WordPress plugin, which allows users to embed CodePen pens. The plugin fails to sanitize input during web page generation, enabling stored XSS. CPE data indicates the affected product is the WordPress plugin 'codepen-embed-block'.
RemediationAI
Upgrade CodePen Embed Block plugin to version 1.1.2 or later. No workaround available; update via WordPress dashboard or manually. Advisory: https://patchstack.com/database/wordpress/plugin/codepen-embed-block/vulnerability/wordpress-codepen-embed-block-plugin-1-1-1-cross-site-scripting-xss-vulnerability
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Same weakness CWE-79 – Cross-site Scripting (XSS)
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External POC / Exploit Code
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