CVE-2025-15636 WordPress YouTube Showcase plugin <= 3.5.1 - Cross Site Scripting (XSS) vulnerability
An attacker can inject malicious scripts into the YouTube Showcase plugin, potentially compromising user sessions or site integrity.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2025-15636?
CVE-2025-15636 is a medium-severity cross-site scripting vulnerability in emarket-design YouTube Showcase, published on 15 Apr 2026. Any signed-in user can exploit it over the network, 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 emarket-design YouTube Showcase youtube-showcase allows Stored XSS.This issue affects YouTube Showcase: from n/a through <= 3.5.1.
Weakness: CWE-79
Which versions are affected by CVE-2025-15636?
How do I fix CVE-2025-15636?
No fix has been published for CVE-2025-15636 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-2025-15636 being exploited?
There is no known exploitation of CVE-2025-15636 in the wild and no public exploit code.
Sources
Also known as GHSA-9xj2-4996-7w4r.