Widely used WordPress plugin; unauthenticated RCE; could disrupt sites across multiple industries.
CVE-2026-6279
Unauthenticated RCE in Avada Builder via PHP function injection (WP plugin <=3.15.2)
Is CVE-2026-6279 being exploited?
Not confirmed. CVE-2026-6279 does not appear in CISA's Known Exploited Vulnerabilities catalog, which records only exploitation that has been observed and reported publicly. That is evidence of absence of a report, not evidence the flaw is unattacked. EPSS currently estimates a 3.2% probability of exploitation in the next 30 days.
How severe is CVE-2026-6279?
CVE-2026-6279 is rated Critical with a CVSS score of 9.8. Severity describes how bad exploitation would be, not how likely it is: pair it with exploitation evidence before deciding what to patch first.
Is there a patch for CVE-2026-6279?
Yes. A fix has been recorded for CVE-2026-6279. The vendor advisory is the authority on the exact fixed version — apply it from there rather than from a summary.
What does CVE-2026-6279 affect?
CVE-2026-6279 affects WordPress, Avada Builder (Fusion Builder) plugin, fusion_get_widget_markup AJAX endpoint. Confirm the exact affected versions against the vendor advisory before deciding you are exposed.
What should I do about CVE-2026-6279?
Upgrade to 3.15.3+; validate exposed nonces
Exploitation status reflects CISA's KEV catalog as we last synced it. Check the catalog directly.
Remote code execution on affected WordPress sites via unauthenticated AJAX endpoint; attacker runs arbitrary PHP.
Patch when possible
- affected<= 3.15.2
As published in the CVE Program record. A version outside these ranges is not a statement that it is unaffected — vendors sometimes understate a range, and distribution-backported builds carry upstream numbers that do not reflect what was patched into them.