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CVE-2026-54544

7.2 · HIGH

Fireshare facilitates self-hosted media and link sharing.

Published Sep 15, 2026CWE-918EPSS 0.41%

Overview

CVE-2026-54544 is a high-severity vulnerability. It was published on September 15, 2026 and has a CVSS 3.1 base score of 7.2 (HIGH).

This vulnerability has a CVSS 3.1 base score of 7.2, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

Technical 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.

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

GitHubgithub.com/ShaneIsrael/fireshare/commit/3d786848d2d27344d4cdecf1bd0d54294c6ca160GitHubgithub.com/ShaneIsrael/fireshare/security/advisories/GHSA-w7j7-gv7f-gj92GitHubgithub.com/ShaneIsrael/fireshare/security/advisories/GHSA-w7j7-gv7f-gj92

How CyberStrike helps

Frequently asked questions

What is CVE-2026-54544?

CVE-2026-54544 is a high-severity vulnerability. It was published on September 15, 2026 and has a CVSS 3.1 base score of 7.2 (HIGH).

How severe is CVE-2026-54544?

This vulnerability has a CVSS 3.1 base score of 7.2, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2026-54544?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2026-54544?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2026-54544 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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