Medium severity6.4NVD Advisory· Published Aug 16, 2026
CVE-2026-15726
CVE-2026-15726
Description
The Serious Slider plugin for WordPress is vulnerable to Stored Cross-Site Scripting via 'theme' Shortcode Attribute in all versions up to, and including, 1.4.0 due to insufficient input sanitization and output escaping. 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
1- Range: <=1.4.0
Patches
Vulnerability mechanics
References
6- plugins.trac.wordpress.org/browser/cryout-serious-slider/tags/1.4.0/inc/shortcodes.phpnvd
- plugins.trac.wordpress.org/browser/cryout-serious-slider/tags/1.4.0/inc/shortcodes.phpnvd
- plugins.trac.wordpress.org/browser/cryout-serious-slider/tags/1.4.0/inc/shortcodes.phpnvd
- plugins.trac.wordpress.org/browser/cryout-serious-slider/tags/1.4.0/inc/shortcodes.phpnvd
- plugins.trac.wordpress.org/changesetnvd
- www.wordfence.com/threat-intel/vulnerabilities/id/c8f45054-e6a4-403b-94eb-2dd2a4840c22nvd
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