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CVE-2026-1543

MEDIUM 6.4 CVSS 3.1
Published
May 21, 2026
Last modified
July 23, 2026
NVD status
Deferred
Reported by
security@wordfence.com
Weakness
CWE-79
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N

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 and versions

  • themefusion Avada (Fusion) Builder — Up to and including 3.15.2

References

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