CVE-2026-6048

MEDIUM 6.4

Flipbox Addon for Elementor <= 2.1.1 - Authenticated (Author+) Stored Cross-Site Scripting via Custom Attributes

CVSS Score

6.4

EPSS Score

0.0%

EPSS Percentile

0th

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.

CWE	CWE-79
Vendor	dragwyb
Product	flipbox addon for elementor
Published	Apr 18, 2026

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CVSS v3 Breakdown

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

Attack Vector

Attack Complexity

Privileges Required

User Interaction

Scope

Confidentiality

Integrity

Availability

Affected Versions

dragwyb / Flipbox Addon for Elementor

0 ≤ 2.0.8

References

NVD ↗ CVE.org ↗ EPSS Data ↗

wordfence.com: https://www.wordfence.com/threat-intel/vulnerabilities/id/faa6ad51-7b3b-4fe1-95fa-e9b63943d533?source=cve plugins.trac.wordpress.org: https://plugins.trac.wordpress.org/browser/ultimate-flipbox-addon-for-elementor/tags/2.1.1/widget/simple/ufae-frontend/class-ufae-frontend-item.php#L250 plugins.trac.wordpress.org: https://plugins.trac.wordpress.org/browser/ultimate-flipbox-addon-for-elementor/tags/2.1.1/widget/stories/ufae-frontend/class-ufae-frontend-loop.php#L248 plugins.trac.wordpress.org: https://plugins.trac.wordpress.org/browser/ultimate-flipbox-addon-for-elementor/tags/2.1.2/widget/simple/ufae-frontend/class-ufae-frontend-item.php#L263 plugins.trac.wordpress.org: https://plugins.trac.wordpress.org/browser/ultimate-flipbox-addon-for-elementor/tags/2.1.2/widget/stories/ufae-frontend/class-ufae-frontend-loop.php#L253

Credits

Athiwat Tiprasaharn Itthidej Aramsri