CVE-2026-84925: Avada theme reflected cross-site scripting in lang parameter

CVE-2026-84925 · Severity: medium · CVSS 6.1 · Published 2026-10-02

The Avada theme, a popular WordPress website builder, contains a reflected cross-site scripting vulnerability in the 'lang' parameter that could allow attackers to inject malicious scripts into pages. An attacker could trick users into clicking a malicious link that executes JavaScript code in their browsers, potentially leading to account hijacking, credential theft, or unauthorized actions on behalf of the victim.

Technologies: ThemeFusion Avada. Vendors: ThemeFusion.

Quick answers

Is CVE-2026-84925 exploited in the wild?
No. Junglewise Threat Intelligence has no report of CVE-2026-84925 being exploited in the wild.
How severe is CVE-2026-84925?
Medium severity, with a CVSS score of 6.1, published 2 October 2026.
Which products and versions are affected?
ThemeFusion Avada up to 7.16.1.
Is there a fix for CVE-2026-84925?
Yes: fixed in 7.16.2. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
How is CVE-2026-84925 attacked?
It is attacked over the network, in a web application.
Am I affected by CVE-2026-84925?
Check whether you run ThemeFusion Avada 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.

How to fix

  • Fixed in: 7.16.2

Technical details

A reflected XSS vulnerability exists in the 'lang' parameter due to insufficient input sanitization in the Fusion_Multilingual::set_active_language() function and missing output escaping when the value is concatenated into a URL by Fusion_Settings::get_setting_link(). The vulnerable value is echoed raw into a double-quoted href attribute in the post editor metabox without applying urlencode(), esc_url(), or esc_attr(). An unauthenticated attacker can inject arbitrary web scripts that execute when a victim clicks a crafted link.

Affected products

  • ThemeFusion Avada up to 7.16.1

Timeline

  • 2026-10-02: disclosed

References

This page as Markdown. Free to reuse under CC BY 4.0 with a link back.