Paper/Archive/CVE-2026-66565

CVE-2026-66565

axiomthemes FC United — WordPress FC United theme <= 1.1.1 - PHP Object Injection vulnerability

EPSS 0.3%CVSS 9.8

critical.is priorityof 100

34

CVSS 9.8 (CNA)9.8 / 10 × 3029.4 Not in CISA KEV+300.0 EPSS percentile 23.2.232 × 204.6 No public exploit+100.0 SSVC exploitation: none+100.0

Description · from the CVE record

Unauthenticated PHP Object Injection in FC United <= 1.1.1 versions.

Affected

ProductAffectedFixed inSource

FC Unitedn/a – 1.1.1–CNA

Scores by source

Patchstack (CNA)9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CISA ADPSSVCExploitation: none · Automatable: yes · Technical impact: total

References

refpatchstack.com/database/wordpress/theme/fcunited/vulnerability/wordpress-fc-united-theme-1-1-1-php-object-injection-vulnerability?_s_id=cve