What is CVE-2025-15636?

CVE-2025-15636 is a medium-severity vulnerability in Emarket-design Youtube Showcase, classified under Cross-site Scripting. CVSS score: 6.5/10. Published 2026-04-15.

How severe is CVE-2025-15636?

Medium severity. CVSS v3 base score is 6.5 out of 10.

XSS in Emarket-design Youtube Showcase

CVE-2025-15636

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.

Vulnerability class: XSS (Cross-Site Scripting)

EPSS: 0.000 (11.9th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:L.

Affected products

Emarket-design Youtube Showcase — versions 0

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

patchstack.com/database/Wordpress/Plugin/youtube-showcase/vulnerability/wordpre… (vdb-entry)

Frequently asked questions

What is CVE-2025-15636?: CVE-2025-15636 is a medium-severity vulnerability in Emarket-design Youtube Showcase, classified under Cross-site Scripting. CVSS score: 6.5/10. Published 2026-04-15.
How severe is CVE-2025-15636?: Medium severity. CVSS v3 base score is 6.5 out of 10.