CVE-2026-50886

CRITICAL

Project Firefly III 6.5.9 - Server-Side Request Forgery via Webhook Management

Title source: llm

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 (1)

Core 1

Core References

https://gist.github.com/pyuysig/f5395f90753ba652835ba9c6abf4c4ae

Scores

CVSS v3 9.1

EPSS 0.0031

EPSS Percentile 22.7%

Attack Vector NETWORK

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N

CISA SSVC

Vulnrichment

Exploitation poc

Automatable yes

Technical Impact total

Details

CWE

CWE-284

Status published

Published Jun 15, 2026

Tracked Since Jun 16, 2026