# CVE-2026-4088

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

## Description

The Switch CTA Box plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'wppw_cta_box' shortcode in all versions up to, and including, 1.1. This is due to insufficient input sanitization and output escaping on user-supplied post meta values including 'cta_box_button_link', 'cta_box_button_id', 'cta_box_button_text', and 'cta_box_description'. The shortcode reads post meta from a user-specified post ID and echoes these values directly into HTML output without any escaping functions (no esc_attr(), esc_url(), or esc_html()). 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-2026-4088
- **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-2026-4088

## Citation

> AI Analytics. CVE-2026-4088. Retrieved 2026-07-19 from https://api.ai-analytics.org/cve/CVE-2026-4088. Derived from NIST NVD. Licensed CC0.

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