{"id":"CVE-2025-56218","title":"An arbitrary file upload vulnerability in SigningHub v8.6.8 allows attackers to execute arbitrary code via uploading a crafted PDF file.","summary":"An arbitrary file upload vulnerability in SigningHub v8.6.8 allows attackers to execute arbitrary code via uploading a crafted PDF file.","severity":"critical","cvss":9.8,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","cwe":["CWE-434"],"vendor":"ascertia","product":"signinghub","affected":["signinghub <= 8.6.8"],"published":"2025-10-17","updated":"2026-07-05","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2025-56218","references":[{"url":"https://github.com/saykino/CVE-2025-56218","label":"cve@mitre.org"}],"tags":["nvd","exploit-available"],"epss":0.00632,"epssPercentile":0.47997,"ingestedAt":"2026-07-06T16:44:34.298Z","exploits":{"github":1,"githubRepos":["https://github.com/saykino/CVE-2025-56218"],"checkedAt":"2026-09-25T08:20:46.148Z"},"exploitAvailable":true,"slug":"CVE-2025-56218","body":"## Overview\n\nAn arbitrary file upload vulnerability in SigningHub v8.6.8 allows attackers to execute arbitrary code via uploading a crafted PDF file.\n\n## Affected\n\n- `signinghub <= 8.6.8`\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"abyssal","depthScore":66,"depthScoreParts":{"impact":53.9,"likelihood":0.1,"exploitation":12,"ransomware":0},"changes":[{"seq":4838,"id":"CVE-2025-56218","ts":1788887210079,"field":"exploit_available","old":"false","new":"true"},{"seq":3721,"id":"CVE-2025-56218","ts":1788886327245,"field":"exploit_available","old":"true","new":"false"},{"seq":2566,"id":"CVE-2025-56218","ts":1788883008640,"field":"exploit_available","old":"false","new":"true"},{"seq":1595,"id":"CVE-2025-56218","ts":1788882408764,"field":"exploit_available","old":"true","new":"false"},{"seq":707,"id":"CVE-2025-56218","ts":1788881846160,"field":"exploit_available","old":"false","new":"true"}]}