CVE-2026-15962
Authenticated PHP Object Injection in Fluent Forms Pro can lead to admin takeover.
Is CVE-2026-15962 being exploited?
Not confirmed. CVE-2026-15962 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 0.37% probability of exploitation in the next 30 days.
How severe is CVE-2026-15962?
CVE-2026-15962 is rated High with a CVSS score of 8.8. 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-2026-15962?
Yes. A fix has been recorded for CVE-2026-15962. The vendor advisory is the authority on the exact fixed version — apply it from there rather than from a summary.
What does CVE-2026-15962 affect?
CVE-2026-15962 affects Fluent Forms Pro Add On Pack <= 6.2.6, WordPress sites with the plugin and user-update integration enabled. Confirm the exact affected versions against the vendor advisory before deciding you are exposed.
What should I do about CVE-2026-15962?
Update plugin to patched version or disable plugin and disable user-update integration; reset admin passwords.
Exploitation status reflects CISA's KEV catalog as we last synced it. Check the catalog directly.
Authenticated PHP object injection via deserialization lets Subscriber+ change passwords and potentially take over admin accounts if user-update integration and a mapped user meta are enabled.
Immediate action required
- affected<= 6.2.6
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.