{"id":"CVE-2025-64447","title":"A reliance on cookies without validation and integrity checking vulnerability in Fortinet FortiWeb 8.0.0 through 8.0.1, FortiWeb 7.6.0 through 7.6.5, FortiWeb 7.4.0 through 7.4.10, FortiWeb 7.2.0 through 7.2.11, FortiWeb 7.0.0 through 7.…","summary":"A reliance on cookies without validation and integrity checking vulnerability in Fortinet FortiWeb 8.0.0 through 8.0.1, FortiWeb 7.6.0 through 7.6.5, FortiWeb 7.4.0 through 7.4.10, FortiWeb 7.2.0 through 7.2.11, FortiWeb 7.0.0 through 7.…","severity":"high","cvss":8.1,"cvssVector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H","cwe":["CWE-565"],"vendor":"fortinet","product":"fortiweb","affected":["fortiweb >= 7.0.0, <= 7.0.11","fortiweb >= 7.2.0, <= 7.2.11","fortiweb >= 7.4.0, <= 7.4.10","fortiweb >= 7.6.0, <= 7.6.5","fortiweb >= 8.0.0, <= 8.0.1"],"published":"2025-12-09","updated":"2026-09-25","sourceUpdated":"2026-09-25T23:10:00.463","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2025-64447","references":[{"url":"https://fortiguard.fortinet.com/psirt/FG-IR-25-945","label":"psirt@fortinet.com"}],"tags":["nvd"],"epss":0.08352,"epssPercentile":0.94763,"ingestedAt":"2026-09-25T23:21:16.904Z","slug":"CVE-2025-64447","body":"## Overview\n\nA reliance on cookies without validation and integrity checking vulnerability in Fortinet FortiWeb 8.0.0 through 8.0.1, FortiWeb 7.6.0 through 7.6.5, FortiWeb 7.4.0 through 7.4.10, FortiWeb 7.2.0 through 7.2.11, FortiWeb 7.0.0 through 7.0.11 may allow an unauthenticated attacker to execute arbitrary operations on the system via crafted HTTP or HTTPS request via forged cookies, requiring prior knowledge of the FortiWeb serial number.\n\n## Affected\n\n- `fortiweb >= 7.0.0, <= 7.0.11`\n- `fortiweb >= 7.2.0, <= 7.2.11`\n- `fortiweb >= 7.4.0, <= 7.4.10`\n- `fortiweb >= 7.6.0, <= 7.6.5`\n- `fortiweb >= 8.0.0, <= 8.0.1`\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"twilight","depthScore":46,"depthScoreParts":{"impact":44.6,"likelihood":1.7,"exploitation":0,"ransomware":0},"changes":[]}