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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).

PUBLISHED Reserved 2026-01-28 | Published 2026-05-21 | Updated 2026-05-21 | Assigner Wordfence




MEDIUM: 6.4CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N

Problem types

CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

Product status

Default status
unaffected

Any version
affected

Timeline

2026-03-24:Vendor Notified
2026-05-20:Disclosed

Credits

Craig Smith finder

References

www.wordfence.com/...-ed02-4561-82f2-4adb820bdf7d?source=cve

themeforest.net/...ada-responsive-multipurpose-theme/2833226

avada.com/documentation/avada-changelog/

cve.org (CVE-2026-1543)

nvd.nist.gov (CVE-2026-1543)

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