# CVE-2026-84938: Avada Fusion Builder stored cross-site scripting in form notification

Source: https://junglewise.ai/threats/cve-2026-84938-the-avada-fusion-builder-plugin-for-wordpress-is-vulnerable-to  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-11-10. Updated: 2026-11-10  
License: CC BY 4.0 with a link back

CVE-2026-84938 · Severity: high · CVSS 7.2 · Published 2026-11-10

Avada is a popular WordPress website builder plugin used by over a million users. A flaw in its form notification system allows attackers to inject malicious scripts that execute when authorized users access certain pages, potentially leading to account compromise or unauthorized actions within WordPress admin accounts.

Technologies: [ThemeFusion Avada (Fusion) Builder](https://junglewise.ai/threats/technologies/avada-fusion-builder). Vendors: [ThemeFusion](https://junglewise.ai/threats/vendors/themefusion).

## Quick answers

**Is CVE-2026-84938 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-84938 being exploited in the wild.

**How severe is CVE-2026-84938?** High severity, with a CVSS score of 7.2, published 10 November 2026.

**Which products and versions are affected?** ThemeFusion Avada (Fusion) Builder up to 3.16.1.

**Is there a fix for CVE-2026-84938?** No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.

**How is CVE-2026-84938 attacked?** It is attacked over the network, in a web application.

**Am I affected by CVE-2026-84938?** Check whether you run ThemeFusion Avada (Fusion) Builder at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## Technical details

A stored cross-site scripting (XSS) vulnerability exists in the Form Notification Dynamic-Data action hook due to insufficient input sanitization and output escaping in the media upload chain affecting ID3 metadata and HTML attributes. Exploitation requires an unauthenticated attacker to craft a payload when a Fusion Form is embedded on an admin-authored page (which grants manage_options context) and a Post Cards element displaying attachment post types is publicly accessible. The injected script persists and executes in the context of privileged users.

## Affected products

- ThemeFusion Avada Fusion Builder up to 3.16.1

## Timeline

- 2026-11-10: disclosed

## References

- [https://avada.com/](https://avada.com/)
- [https://www.wordfence.com/threat-intel/vulnerabilities/id/ec9636d5-80bc-418e-9348-a1d2777bf1fc?source=cve](https://www.wordfence.com/threat-intel/vulnerabilities/id/ec9636d5-80bc-418e-9348-a1d2777bf1fc?source=cve)

## Related threats

- [Avada Fusion Builder stored cross-site scripting in shortcode attributes](https://junglewise.ai/threats/cve-2026-104729-the-avada-fusion-builder-plugin-for-wordpress-is-vulnerable-to)
- [Avada Fusion Builder authorization bypass in form submission](https://junglewise.ai/threats/cve-2026-97670-the-avada-fusion-builder-plugin-for-wordpress-is-vulnerable-to)
- [Avada (Fusion) Builder stored cross-site scripting in shortcode attribute](https://junglewise.ai/threats/cve-2026-16654-avada-fusion-builder-stored-cross-site-scripting-in-shortcode)