CVE-2026-50886

Published Jun 15, 2026 CVSS 3.1 · 9.1 Critical EPSS < 1% KEV · Not listed
Description
Incorrect access control in the webhook management component of Project Firefly III v6.5.9 allows attackers to scan internal resources via a crafted POST request.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

Source ID Title
Github GHSA Github GHSA GHSA-9mmg-q95p-gp67 Project Firefly III has incorrect access control in the webhook management component
History
Type Values Removed Values Added
First Time appeared Firefly
Firefly project Firefly Iii
Vendors & Products Firefly
Firefly project Firefly Iii
Type Values Removed Values Added
Title Unauthorized Webhook Access Enables Resource Enumeration in Project Firefly III v6.5.9
Type Values Removed Values Added
Title Unauthorized Webhook Access Enables Resource Enumeration in Project Firefly III v6.5.9
Type Values Removed Values Added
Weaknesses CWE-284
Metrics cvssV3_1

{'score': 9.1, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N'}

ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'poc', 'Technical Impact': 'total'}, 'version': '2.0.3'}

Type Values Removed Values Added
Description Incorrect access control in the webhook management component of Project Firefly III v6.5.9 allows attackers to scan internal resources via a crafted POST request.
References
Weaknesses

Sources

Status
PUBLISHED
Assigner
mitre
Published
Updated
Jun 16, 2026, 2:49 PM
Reserved
Jun 7, 2026, 12:00 AM
Status
Deferred
Published
Jun 15, 2026, 8:16 PM
Modified
Jun 17, 2026, 10:57 AM