CVE-2026-15790 | BDVDB-2026-360328 Detail
emarket-designVideo Gallery – YouTube Gallery, Playlist & Video Grid
Description#
The Youtube Showcase plugin for WordPress is vulnerable to Stored Cross-Site Scripting in versions up to, and including, 4.0.4 via the 'emd_mb_meta' shortcode. This is due to insufficient input sanitization and output escaping on attachment titles referenced by the shortcode's image field: EMD_MB_Helper::image_info() returns the attachment's raw post_title, and EMD_MB_Helper::shortcode() interpolates it into title="%s" HTML attributes via sprintf() without esc_attr(). This makes it possible for authenticated attackers, with author-level access and above (upload_files capability required to create the attachment, edit_posts/publish_posts to embed the shortcode), to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.
Impact#
Per CVSS v3.1: confidentiality impact low, integrity impact low, availability impact none. Attack vector: network.
Weaknesses#
- CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
References#
- https://www.wordfence.com/threat-intel/vulnerabilities/id/3be5e544-1ea5-46f6-a15b-99b0e3718c91?source=cve
- https://plugins.trac.wordpress.org/browser/youtube-showcase/tags/4.0.4/assets/ext/emd-meta-box/inc/helpers.php#L72
- https://plugins.trac.wordpress.org/browser/youtube-showcase/tags/4.0.4/assets/ext/emd-meta-box/inc/helpers.php#L274
Exploit#
No public exploit known
History#
- Version 1Record published in the CVE List.
- Version 2Most recent update recorded in the CVE List.