Threat intelligence

Video Gallery <= 4.0.4 - Authenticated (Author+) Stored Cross-Site Scripting via Attachment 'post_title' via emd_mb_meta Shortcode

CVE-2026-15790 · 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 <= 4.0.4 - Authenticated (Author+) Stored Cross-Site Scripting via Attachment 'post_title' via emd_mb_meta Shortcode
Affected software: youtube-showcase(Plugin)
Affected versions: ≤ 4.0.4
Authentication: Authenticated (see advisory title)
Vulnerability type: Cross-site scripting
CVE: CVE-2026-15790
Published: 15 August 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 3be5e544-1ea5-46f6-a15b-99b0e3718c91). Methodology and redistribution notes

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