What’s Vulnerable › Vulnerabilities

CVE-2026-1543: Avada (Fusion) Builder <= 3.15.2 - Authenticated (Subscriber+) Stored Cross-Site Scripting via Multiple Shortcodes

• Severity: medium (CVSS 6.4 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.3% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-05-21 · updated 2026-07-23
• Weakness: CWE-79

Description

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).

Affected products

• themefusion Avada (Fusion) Builder: through 3.15.2

References

• https://avada.com/documentation/avada-changelog/
• https://themeforest.net/item/avada-responsive-multipurpose-theme/2833226
• https://www.wordfence.com/threat-intel/vulnerabilities/id/72a6b040-ed02-4561-82f2-4adb820bdf7d?source=cve

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