CVSS Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N
Lifecycle Timeline
4Description
The WP Shortcodes Plugin - Shortcodes Ultimate plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'max_width' attribute of the `su_box` shortcode in all versions up to, and including, 7.4.10 due to insufficient input sanitization and output escaping on user supplied attributes. This makes it possible for authenticated attackers, with contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.
Analysis
Stored cross-site scripting (XSS) in WP Shortcodes Plugin - Shortcodes Ultimate through version 7.4.10 allows authenticated contributors and above to inject arbitrary JavaScript via the 'max_width' attribute of the su_box shortcode due to insufficient input sanitization and output escaping. The injected scripts persist in page content and execute for all users viewing the affected page, enabling attackers with contributor-level WordPress access to compromise site visitors without additional user interaction.
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External POC / Exploit Code
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EUVD-2026-17691
GHSA-23f4-hfmq-94mj