Threat intelligence

Video Gallery – YouTube Gallery & Responsive Video Playlist <= 3.5.1 - Authenticated (Contributor+) Stored Cross-Site Scripting

CVE-2025-15636 · youtube-showcase

Important: Seeing this vulnerability listed does not mean your website is affected. Exposure depends on whether you run Youtube Showcase at a vulnerable version. How SiteRespond intelligence works

Vulnerability: Video Gallery – YouTube Gallery & Responsive Video Playlist <= 3.5.1 - Authenticated (Contributor+) Stored Cross-Site Scripting
Affected software: youtube-showcase(Plugin)
Affected versions: ≤ 3.5.1
Authentication: Authenticated (see advisory title)
Vulnerability type: Cross-site scripting
CVE: CVE-2025-15636
Published: 15 April 2026
CISA KEV: Not listed in CISA KEV at last catalog refresh
Impact: May allow attackers to run scripts in visitors' browsers or hijack admin sessions.
Source: Data imported from Wordfence Intelligence (advisory fa701f35-88b6-4ba9-bbda-0cbb1b341d84). Methodology and redistribution notes

Check whether your installed version is affected

SiteRespond Defence matches your installed Youtube Showcase version against this catalog when the Defence plugin is connected to your WordPress site.

Start SiteRespond Defence for WordPress — £29.99/monthScan your website

All Youtube Showcase advisoriesBack to catalog