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Medium 6.4Published Oct 28, 2026

CVE-2026-104729Avada (Fusion) Builder <= 3.16.2 - Authenticated (Contributor+) Stored Cross-Site Scripting via 'tab_index' and 'empty_notice' Shortcode Attributes

Updated under an hour ago ()

Does this affect you?

It affects themefusion Avada (Fusion) Builder. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

The Avada (Fusion) Builder plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'tab_index, empty_notice' parameter in all versions up to, and including, 3.16.2 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. wp_kses_post does not strip the payload on save because the dangerous characters reside within shortcode attribute text between square brackets, which kses treats as plain text rather than HTML markup.

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CVSS
6.4 MEDIUM (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N
Weakness (CWE)
CWE-79
Known exploited
Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days)
Not loaded for this CVE
Assigned by
Wordfence
NVD analysis
Deferred
Record last updated
Oct 28, 2026
First seen by InfoSec Signals
Oct 28, 2026

Affected products

Affected products
themefusion Avada (Fusion) Builder
themefusion:avada_fusion_builder (from the name)
through 3.16.2
CNA record

References

References

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.

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