# CVE-2026-4076

> Vulnerability · severity: **MEDIUM** (CVSS 6.4).

## 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.

## Key facts

- **CVE ID:** CVE-2026-4076
- **Published:** 2026-04-22
- **CVSS severity:** MEDIUM
- **CVSS base score:** 6.4
- **CWE codes:** CWE-79

## Primary sources

- NIST NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-4076

## Citation

> AI Analytics. CVE-2026-4076. Retrieved 2026-07-03 from https://api.ai-analytics.org/cve/CVE-2026-4076. Derived from NIST NVD. Licensed CC0.

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