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CVE-2025-50023: WordPress CodePen Embed Block plugin <= 1.2.0 - Cross Site Scripting (XSS) Vulnerability

• Severity: medium (CVSS 5.9 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.3% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2025-06-20 · updated 2026-06-17
• Weakness: CWE-79

Description

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Chris Coyier CodePen Embed Block codepen-embed-block allows Stored XSS.This issue affects CodePen Embed Block: from n/a through <= 1.2.0.

Affected products

• Chris Coyier CodePen Embed Block: through 1.2.0

References

• https://patchstack.com/database/Wordpress/Plugin/codepen-embed-block/vulnerability/wordpress-codepen-embed-block-plugin-1-1-1-cross-site-scripting-xss-vulnerability?_s_id=cve

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