{"id":"CVE-2026-54337","title":"Fireshare facilitates self-hosted media and link sharing","summary":"Fireshare facilitates self-hosted media and link sharing. Prior to version 1.6.14, an argument Injection in the video upload function allows unauthenticated attacker to write/overwrite system files. Version 1.6.14 fixes the issue.","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-88"],"vendor":"ShaneIsrael","product":"fireshare","affected":["fireshare < 1.6.14"],"published":"2026-09-15","updated":"2026-09-16","sourceUpdated":"2026-09-16T19:17:20.230","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-54337","references":[{"url":"https://github.com/ShaneIsrael/fireshare/security/advisories/GHSA-hmh2-6g84-q8jx","label":"security-advisories@github.com"}],"tags":["nvd","exploit-available","cve.org"],"exploits":{"github":1,"githubRepos":["https://github.com/4qu4r1um/CVE-2026-54337-PoC"],"checkedAt":"2026-09-21T15:29:31.094Z"},"exploitAvailable":true,"ssvc":{"exploitation":"none","automatable":"yes","technicalImpact":"total","timestamp":"2026-09-16T18:29:18.494535Z"},"ingestedAt":"2026-09-15T20:44:02.613Z","epss":0.00437,"epssPercentile":0.37337,"slug":"CVE-2026-54337","body":"## Overview\n\nFireshare facilitates self-hosted media and link sharing. Prior to version 1.6.14, an argument Injection in the video upload function allows unauthenticated attacker to write/overwrite system files. Version 1.6.14 fixes the issue.\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":[]}