CVE-2026-9635
MEDIUM
6.4
CVSS 3.1
Description
The WP Shortcode by MyThemeShop plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'title' parameter of the [tab] shortcode in versions up to, and including, 1.4.17. This is due to insufficient input sanitization and output escaping in the mts_tabs() function, which outputs the title shortcode attribute directly into the HTML output between anchor tags without applying any escaping functions. 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.
Affected WordPress components
-
wp-shortcode Plugin · wp-shortcodeUp to and including 1.4.17View on WordPress.org
A confirmed match is backed by the plugin or theme slug. A possible match is based on the product name only and should be verified.
Affected products and versions
- mythemeshop WP Shortcode by MyThemeShop — Up to and including 1.4.17
References
- plugins.trac.wordpress.org https://plugins.trac.wordpress.org/browser/wp-shortcode/trunk/wp-shortcode.php#L766
- plugins.trac.wordpress.org https://plugins.trac.wordpress.org/browser/wp-shortcode/trunk/wp-shortcode.php#L774
- www.wordfence.com https://www.wordfence.com/threat-intel/vulnerabilities/id/6f3bcf70-2900-4a13-9ed4-264a15af9725?source=cve
- nvd.nist.gov Official NVD record