What’s Vulnerable › Vulnerabilities

CVE-2026-9635: WP Shortcode by MyThemeShop <= 1.4.17 - Authenticated (Contributor+) Stored Cross-Site Scripting via 'title' Shortcode Attribute

• Severity: medium (CVSS 6.4 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.3% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-07-23 · updated 2026-07-23
• Weakness: CWE-79

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 products

• mythemeshop WP Shortcode by MyThemeShop: through 1.4.17

References

• https://plugins.trac.wordpress.org/browser/wp-shortcode/trunk/wp-shortcode.php#L766
• https://plugins.trac.wordpress.org/browser/wp-shortcode/trunk/wp-shortcode.php#L774
• https://www.wordfence.com/threat-intel/vulnerabilities/id/6f3bcf70-2900-4a13-9ed4-264a15af9725?source=cve

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