CVE-2025-50023 WordPress CodePen Embed Block plugin <= 1.2.0 - Cross Site Scripting (XSS) Vulnerability
Stored XSS in CodePen Embed Block allows attackers to inject malicious scripts into WordPress sites, potentially compromising user sessions.
- Exploited in the wild
- Not known
- Login needed
- An administrator
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2025-50023?
CVE-2025-50023 is a medium-severity cross-site scripting vulnerability in Chris Coyier CodePen Embed Block, published on 20 Jun 2025. An attacker needs administrator access to exploit it, and only if a user opens a file or follows a link.
Official 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.
Weakness: CWE-79
Which versions are affected by CVE-2025-50023?
How do I fix CVE-2025-50023?
No fix has been published for CVE-2025-50023 yet. Limit exposure of the affected software until one is available.
Escape output for the context it lands in and set a strict Content Security Policy. Upgrading the affected component is the real fix. More about Cross-site scripting.
Is CVE-2025-50023 being exploited?
There is no known exploitation of CVE-2025-50023 in the wild and no public exploit code.
Sources
Also known as GHSA-mrw7-fvfv-6pm9.