{"id":"CVE-2026-12256","title":"Deserialization of Untrusted Data vulnerability in ThemeFusion Fusion Builder fusion-builder allows Object Injection.This issue affects Fusion Builder: from n/a through 3.15.3.","summary":"Deserialization of Untrusted Data vulnerability in ThemeFusion Fusion Builder fusion-builder allows Object Injection.This issue affects Fusion Builder: from n/a through 3.15.3.","severity":"high","cvss":8.8,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","cwe":["CWE-502"],"vendor":"ThemeFusion","product":"fusion-builder","affected":["fusion-builder <= 3.15.3"],"published":"2026-06-17","updated":"2026-10-01","sourceUpdated":"2026-10-01T17:17:19.583","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-12256","references":[{"url":"https://patchstack.com/database/wordpress/plugin/fusion-builder/vulnerability/wordpress-avada-theme-3-15-3-php-object-injection-vulnerability?_s_id=cve","label":"audit@patchstack.com"}],"tags":["nvd","cve.org"],"ssvc":{"exploitation":"none","automatable":"no","technicalImpact":"total","timestamp":"2026-06-17T10:29:03.591684Z"},"epss":0.00468,"epssPercentile":0.40366,"ingestedAt":"2026-10-01T18:55:42.320Z","slug":"CVE-2026-12256","body":"## Overview\n\nDeserialization of Untrusted Data vulnerability in ThemeFusion Fusion Builder fusion-builder allows Object Injection.This issue affects Fusion Builder: from n/a through 3.15.3.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"twilight","depthScore":48,"depthScoreParts":{"impact":48.4,"likelihood":0.1,"exploitation":0,"ransomware":0},"changes":[]}