# CVE-2026-6048

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

## Description

The Flipbox Addon for Elementor plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the Flipbox widget's button URL `custom_attributes` field in all versions up to, and including, 2.1.1 due to insufficient validation of custom attribute names. Specifically, the plugin uses `esc_html()` on the attribute name which does not prevent event handler attributes (e.g., `onmouseover`, `onclick`). This makes it possible for authenticated attackers, with author-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-2026-6048
- **Published:** 2026-04-18
- **CVSS severity:** MEDIUM
- **CVSS base score:** 6.4
- **CWE codes:** CWE-79

## Primary sources

- NIST NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-6048

## Citation

> AI Analytics. CVE-2026-6048. Retrieved 2026-07-18 from https://api.ai-analytics.org/cve/CVE-2026-6048. Derived from NIST NVD. Licensed CC0.

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