CVE-2026-6048 Flipbox Addon for Elementor <= 2.1.1 - Authenticated (Author+) Stored Cross-Site Scripting via Custom Attributes
Authenticated attackers can inject arbitrary scripts via custom attributes in the Flipbox widget, leading to stored XSS execution on victim pages.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-6048?
CVE-2026-6048 is a medium-severity cross-site scripting vulnerability in dragwyb Flipbox Addon for Elementor, published on 18 Apr 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official 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.
Weakness: CWE-79
Which versions are affected by CVE-2026-6048?
How do I fix CVE-2026-6048?
No fix has been published for CVE-2026-6048 yet. Limit exposure of the affected software until one is available.
Escape output for the context it lands in and set a strict Content Security Policy. Upgrading the affected component is the real fix. More about Cross-site scripting.
Is CVE-2026-6048 being exploited?
There is no known exploitation of CVE-2026-6048 in the wild and no public exploit code.
Sources
Also known as GHSA-vf7g-wm62-vfxh.