{"id":"CVE-2026-54337","aliases":["EUVD-2026-79946","GHSA-hmh2-6g84-q8jx"],"status":"published","title":"Fireshare has Unauthenticated Argument Injection to Arbitrary File Write/Overwrite","description":"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":{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-09","score":0.00632,"percentile":0.50608,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":true,"fix_available":false},"cwes":["CWE-88"],"published":"2026-09-15T20:22:09Z","modified":"2026-10-28T02:30:47Z","exploits":[{"source":"pocgithub","id":"4qu4r1um/CVE-2026-54337-PoC","title":"4qu4r1um/CVE-2026-54337-PoC","date":"2026-06-20","url":"https://github.com/4qu4r1um/CVE-2026-54337-PoC"}],"products":[{"vendor":"shaneisrael","product":"fireshare"}],"references":[{"url":"https://github.com/ShaneIsrael/fireshare/security/advisories/GHSA-hmh2-6g84-q8jx","tags":["x_refsource_CONFIRM","advisory"]},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/54xxx/CVE-2026-54337.json","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-54337","tags":["advisory"]}],"sources":{"cve":[{"id":"CVE-2026-54337","title":"Fireshare has Unauthenticated Argument Injection to Arbitrary File Write/Overwrite","description":"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.","status":"published","published":"2026-09-15T20:22:09.176Z","modified":"2026-09-16T18:36:44.475Z","cvss":[{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical","assessor":"cna"}],"cwes":["CWE-88"],"updated_at":"2026-11-02T13:38:09.774038Z"}],"euvd":[{"id":"EUVD-2026-79946","description":"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.","status":"published","published":"2026-09-15T20:22:09Z","modified":"2026-09-16T18:36:44Z","cvss":[{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical"}],"updated_at":"2026-11-02T17:28:14.33177Z"}],"nvd":[{"id":"CVE-2026-54337","description":"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.","status":"published","published":"2026-09-15T21:16:36.92Z","modified":"2026-09-30T17:51:56.193Z","cvss":[{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical","assessor":"secondary"}],"cwes":["CWE-88"],"updated_at":"2026-11-02T14:12:48.287983Z"}],"osv":[{"id":"CVE-2026-54337","title":"Fireshare has Unauthenticated Argument Injection to Arbitrary File Write/Overwrite","description":"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.","status":"published","published":"2026-09-15T20:22:09.176Z","modified":"2026-10-28T02:30:47.641807611Z","cvss":[{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical"}],"cwes":["CWE-88"],"updated_at":"2026-11-02T15:45:10.818486Z"}]}}