Read the docs
TI-2026-39231 Aliases CVE-2026-54337

Fireshare has Unauthenticated Argument Injection to Arbitrary File Write/Overwrite

Priority MEDIUM 50CWE-88Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
Code execution
Confidentiality · integrity · availability
High · High · High
Fix status
Fixed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-88.

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.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00632 50th percentileScored 2026-11-07
Fix Fixed fireshare (ShaneIsrael): 1.6.14

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
Yes
Technical impact
Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
ShaneIsraelfiresharebefore 1.6.141.6.14Patch availableCNA
  • fireshare VendorShaneIsrael Affected before 1.6.14 Fixed in 1.6.14 Patch available CNA

CPE names Threatist (inferred) · 1

Inferred from how NVD named this product before; not given by a source.

CPEVersionsRoleVendor
cpe:2.3:a:shaneisrael:fireshare:*:*:*:*:*:*:*:*——ShaneIsrael
  • cpe:2.3:a:shaneisrael:fireshare:*:*:*:*:*:*:*:* Versions — — ·ShaneIsrael

Remediation

  • Fix · CNA fireshare (ShaneIsrael) Fixed in 1.6.14

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-54337
  2. 2026-10-25 EPSS moved to the 50th–90th percentile

References

  • TI-2026-26989 Unauthenticated Path Traversal Arbitrary File Write in /api/uploadChunked/public CVSS 3.1CRITICAL 9.1
  • TI-2026-39383 Fireshare has unauthenticated SSRF via missing login_required on webhook test endpoints CVSS 3.1HIGH 7.2
  • TI-2026-26026 Fireshare has Path Traversal Arbitrary File Write in `/api/uploadChunked` CVSS 3.1HIGH 8.1
  • TI-2025-35020 FireShare FileShare 1.2.25 contains a time-based blind SQL injection vulnerability in the… CVSS 3.1MEDIUM 6.5
  • TI-2025-41424 Fireshare Public Uploads feature is vulnerable to OS Command Injection (RCE) CVSS 3.1CRITICAL 9.8

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences