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.
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Affected Vendors & Products
References
History
Sat, 18 Apr 2026 04:30:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| 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. | |
| Title | Flipbox Addon for Elementor <= 2.1.1 - Authenticated (Author+) Stored Cross-Site Scripting via Custom Attributes | |
| Weaknesses | CWE-79 | |
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cvssV3_1
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Status: PUBLISHED
Assigner: Wordfence
Published:
Updated: 2026-04-18T03:37:05.751Z
Reserved: 2026-04-09T19:32:35.200Z
Link: CVE-2026-6048
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Status : Received
Published: 2026-04-18T05:16:24.157
Modified: 2026-04-18T05:16:24.157
Link: CVE-2026-6048
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OpenCVE Enrichment
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