CVE-2026-3296
Unauthenticated PHP object injection via unserialize in Everest Forms (WordPress).
Is CVE-2026-3296 being exploited?
Not confirmed. CVE-2026-3296 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 3.5% probability of exploitation in the next 30 days.
How severe is CVE-2026-3296?
CVE-2026-3296 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-2026-3296?
Yes. A fix has been recorded for CVE-2026-3296. The vendor advisory is the authority on the exact fixed version — apply it from there rather than from a summary.
What does CVE-2026-3296 affect?
CVE-2026-3296 affects WordPress with Everest Forms <=3.4.3, Everest Forms plugin (<=3.4.3). Confirm the exact affected versions against the vendor advisory before deciding you are exposed.
What should I do about CVE-2026-3296?
Update Everest Forms to latest (>=3.4.4).
Exploitation status reflects CISA's KEV catalog as we last synced it. Check the catalog directly.
Unauthenticated RCE via unsafe unserialize of stored form metadata; attacker can run PHP on server via crafted input.
Patch when possible
- affected<= 3.4.3
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.