---
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: '2026-09-24T07:53:07.052Z'
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: 0.37477
---

## Overview

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.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.