CVE-2026-54544: high-severity vulnerability in ShaneIsrael fireshare
Fireshare has unauthenticated SSRF via missing login_required on webhook test endpoints
Published · Updated
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21Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 7.2epss 0.4%
Fireshare facilitates self-hosted media and link sharing. Prior to version 1.6.16, two API endpoints that trigger outbound HTTP requests are missing the @login_required decorator. An unauthenticated attacker can call POST /api/test-discord-webhook or POST /api/test-webhook and cause the Fireshare server to issue an arbitrary HTTP POST to any URL the attacker supplies, including internal network addresses and cloud metadata services. No credentials, session cookies, or prior access are required. Version 1.6.16 contains a patch.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:N/A:L
Affected products
ShaneIsrael · fireshareRelated CVEs — ShaneIsrael fireshare
In the same product, most dangerous first.
CVE-2025-67728CRITICALFireshare Public Uploads feature is vulnerable to OS Command Injection (RCE)EPSS 0.7%CVE-2026-54337CRITICALFireshare has Unauthenticated Argument Injection to Arbitrary File Write/OverwriteEPSS 0.6%CVE-2026-34745CRITICALUnauthenticated Path Traversal Arbitrary File Write in /api/uploadChunked/publicEPSS 0.6%CVE-2026-33645HIGHFireshare has Path Traversal Arbitrary File Write in `/api/uploadChunked`EPSS 0.4%