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Vulnerability record · CVE-2026-54544 · published 15 September 2026

CVE-2026-54544: Server-side request forgery (SSRF) vulnerability

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.

7.2 CVSS 3.1 High EPSS 0.41% · top 67.1% CWE-918 · Server-side request forgery (SSRF) Received
7.2CVSS 3.1 base score
0.41%EPSS exploitation probability, 30 days
NoNot in CISA KEV
0Affected product versions listed by NVD
3References
16 Sep 2026Last modified by NVD

Description

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

References

LinkTags
https://github.com/ShaneIsrael/fireshare/commit/3d786848d2d27344d4cdecf1bd0d54294c6ca160
https://github.com/ShaneIsrael/fireshare/security/advisories/GHSA-w7j7-gv7f-gj92
https://github.com/ShaneIsrael/fireshare/security/advisories/GHSA-w7j7-gv7f-gj92

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Source: NIST National Vulnerability Database (record CVE-2026-54544), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.