CVE-2026-4076

medium

Description

The Slider Bootstrap Carousel plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'category' and 'template' shortcode attributes in all versions up to and including 1.0.7. This is due to insufficient input sanitization and output escaping on user-supplied shortcode attributes. The plugin uses extract() on shortcode_atts() to parse attributes, then directly outputs the $category variable into multiple HTML attributes (id, data-target, href) on lines 38, 47, 109, and 113 without applying esc_attr(). Similarly, the $template attribute flows into a class attribute on line 93 without 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.

References

https://www.wordfence.com/threat-intel/vulnerabilities/id/26fe0b7b-dbf8-467f-b5e2-86a858eeaf89?source=cve

https://plugins.trac.wordpress.org/browser/slider-bootstrap-carousel/trunk/includes/sbc-shortcode.php#L93

https://plugins.trac.wordpress.org/browser/slider-bootstrap-carousel/trunk/includes/sbc-shortcode.php#L7

https://plugins.trac.wordpress.org/browser/slider-bootstrap-carousel/trunk/includes/sbc-shortcode.php#L47

https://plugins.trac.wordpress.org/browser/slider-bootstrap-carousel/trunk/includes/sbc-shortcode.php#L38

https://plugins.trac.wordpress.org/browser/slider-bootstrap-carousel/trunk/includes/sbc-shortcode.php#L113

https://plugins.trac.wordpress.org/browser/slider-bootstrap-carousel/trunk/includes/sbc-shortcode.php#L109

https://plugins.trac.wordpress.org/browser/slider-bootstrap-carousel/tags/1.0.7/includes/sbc-shortcode.php#L93

https://plugins.trac.wordpress.org/browser/slider-bootstrap-carousel/tags/1.0.7/includes/sbc-shortcode.php#L7

https://plugins.trac.wordpress.org/browser/slider-bootstrap-carousel/tags/1.0.7/includes/sbc-shortcode.php#L47

https://plugins.trac.wordpress.org/browser/slider-bootstrap-carousel/tags/1.0.7/includes/sbc-shortcode.php#L38

https://plugins.trac.wordpress.org/browser/slider-bootstrap-carousel/tags/1.0.7/includes/sbc-shortcode.php#L113

https://plugins.trac.wordpress.org/browser/slider-bootstrap-carousel/tags/1.0.7/includes/sbc-shortcode.php#L109

Details

Source: Mitre, NVD

Published: 2026-04-22

Updated: 2026-04-22

Risk Information

CVSS v2

Base Score: 5.5

Vector: CVSS2#AV:N/AC:L/Au:S/C:P/I:P/A:N

Severity: Medium

CVSS v3

Base Score: 6.4

Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N

Severity: Medium

EPSS

EPSS: 0.00016