CVE-2026-1543
MediumCVSS 6.4Exploitation Probability (EPSS)
Low risk26th percentile - higher than 26% of all known CVEs
Summary
The Avada (Fusion) Builder plugin for WordPress up to version 3.15.2 is vulnerable to stored XSS via multiple shortcodes due to insufficient input sanitization and output escaping.
Risk Assessment
An authenticated attacker with Subscriber-level access or higher can inject arbitrary scripts that execute when an administrator views a page displaying dynamic user data.
Recommendation
Update the Avada (Fusion) Builder plugin to the latest patched version.
Other vulnerabilities in Avada (Fusion) Builder
See all- CVE-2026-16654Medium
The Avada (Fusion) Builder plugin for WordPress is vulnerable to Stored Cross-Site Scripting via 'size' Shortcode Attribute in all versions up to, and including, 3.15.6 due to insufficient input sanitization and output escaping. Authenticated attackers with contributor-level access or above can inject arbitrary web scripts that execute whenever a user accesses an injected page.
- CVE-2026-12536Medium
The Avada (Fusion) Builder plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'Module Title' parameter in all versions up to and including 3.15.5 due to insufficient input sanitization and output escaping.
Original NVD description (English source)
The Avada (Fusion) Builder plugin for WordPress is vulnerable to Stored Cross-Site Scripting via multiple shortcodes in all versions up to, and including, 3.15.2 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with Subscriber-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user (typically an administrator) accesses a page displaying dynamic user data (such as via the Dynamic Data feature pulling user biographical information).
Vulnerability data from NVD (NIST) · CISA KEV · EPSS