0.0
NA
CVE-2026-50886
Project Firefly III: Webhook Internal Resource Scanning
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.

INFO

Published Date :

June 15, 2026, 8:16 p.m.

Last Modified :

June 15, 2026, 8:16 p.m.

Remotely Exploit :

No
Affected Products

The following products are affected by CVE-2026-50886 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

No affected product recoded yet

Solution
Implement proper access controls for the webhook management component to prevent unauthorized resource scanning.
  • Restrict access to the webhook management component.
  • Validate user permissions before processing webhook requests.
  • Sanitize all user inputs for webhook management.
  • Update Project Firefly III to the latest version.
References to Advisories, Solutions, and Tools

Here, you will find a curated list of external links that provide in-depth information, practical solutions, and valuable tools related to CVE-2026-50886.

URL Resource
https://gist.github.com/pyuysig/f5395f90753ba652835ba9c6abf4c4ae
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2026-50886 is associated with the following CWEs:

Common Attack Pattern Enumeration and Classification (CAPEC)

Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2026-50886 weaknesses.

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2026-50886 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2026-50886 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

  • New CVE Received by [email protected]

    Jun. 15, 2026

    Action Type Old Value New Value
    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.
    Added Reference https://gist.github.com/pyuysig/f5395f90753ba652835ba9c6abf4c4ae
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.