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CVE · Medium

CVE-2026-1543 — Fusion Builder [fusion-builder] < 3.15.3

CVE Vulnerability Type Severity Affected Fixed in Published Status
CVE-2026-1543 Fusion Builder [fusion-builder] < 3.15.3 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') Medium 6.4 < 3.15.3 3.15.3 2026-05-20

CVE-2026-1543

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).

Source: CVE.org

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