Skip to content
bugbounty.fyi
Get paid to secure open source 475 paid open-source programs on Sorona, up to $1M Perk Low bugs: $100 or 1 mo Claude Max

Also on Patchstack. All 476 paid open-source programs

Try

Highest paying Newly launched Paid without KYC Full safe harbor
All results

About this site

Fluvius

By Fluvius System Operator cv Bug bounty on Intigriti fluvius.be

Accepting reports Full safe harbor
Go to program
Top reward
€5,500
Top severity paid
Critical
Assets in scope
3
Public CVEs
0
Last change

At a glance

What to know before you start testing.

Pays up to €5,500
for critical bugs, from €100.
Report on Intigriti
Submit through the program page.
Full safe harbor
Good-faith research is authorised; no legal action.
No public write-ups
Keep findings private.

Rewards

What Intigriti lists as the payout for each severity.

Severity Reward
Critical €5,500 from €3,500
High €1,500
Medium €500
Low €100

Scope

3 assets you may test.

Web 3

  • https://over.fluvius.be
  • www-a.fluvius.be
  • www.fluvius.be

Rules

What the policy asks of you, and the bug types it won't reward, quoted from Fluvius (via Intigriti)'s policy.

While testing

  • Respect the scope of the program
  • Not discuss or disclose vulnerability information without prior written consent (including PoC's on YouTube and Vimeo)

Not accepted

  • Drupal usernames disclosure
  • Pre-Auth Account takeover/OAuth squatting
  • Self-XSS that can't be used to exploit other users
  • Verbose messages/files/directory listings without disclosing any sensitive information
  • CORS misconfiguration on non-sensitive endpoints
  • Missing cookie flags
  • Missing security headers
  • Cross-site Request Forgery with no or low impact
  • Presence of autocomplete attribute on web forms
  • Reverse tabnabbing
  • Bypassing rate-limits or the non-existence of rate-limits.
  • Best practices violations (password complexity, expiration, re-use, etc.)
  • Clickjacking without proven impact/unrealistic user interaction
  • CSV Injection
  • Sessions not being invalidated (logout, enabling 2FA, etc.)
  • Tokens leaked to third parties
  • Anything related to email spoofing, SPF, DMARC or DKIM
  • Content injection without being able to modify the HTML
  • Username/email enumeration
  • Email bombing
  • HTTP Request smuggling without any proven impact
  • Homograph attacks
  • XMLRPC enabled
  • Banner grabbing/Version disclosure
  • Not stripping metadata of files

Summarised with AI from the program policy on Intigriti, and checked word for word against it. Read the original

Changes

Tracked since 11 Nov 2026. Last checked 8 minutes ago.

No changes yet. When the rewards or scope move, you will see it here and in the RSS feed.

Before we tracked it

Scope and reward changes recorded before this page started tracking it.

  1. Status

    Program status changed

  2. Status

    Program status changed

  3. Status

    Program status changed

Public CVEs

Published vulnerabilities in this vendor's products, from the NVD.

Search NVD

No CVEs matched yet. We match NVD records by vendor name, so products sold under another name can be missing.

Original policy

Copied from www.intigriti.com on 12 Nov 2026. The summaries on this page are made from it; the live page may have changed since.

Description

Fluvius System Operator cv is the independent company that is responsible for  building, managing and maintaining the distribution grids for electricity and natural gas in all 300 Flemish municipalities. Plus, managing the public lighting in all 300 Flemish municipalities . Also building, managing and maintaining the sewerage system in 86 Flemish municipalities and building district heating grids

Rules of engagement

By participating in this program, you agree to:

  • Respect the Community Code of Conduct
  • Respect the Intigriti Terms and Conditions
  • Respect the scope of the program
  • Not discuss or disclose vulnerability information without prior written consent (including PoC's on YouTube and Vimeo)

Validation times

We will validate all submissions within the below timelines, once your submission has been verified by Intigriti. Submissions validated outside of this may be awarded a €25 bonus.

Vulnerability Severity Time to validate
Exceptional 2 Working days
Critical 2 Working days
High 5 Working days
Medium 15 Working days
Low 15 Working days

This remains at the discretion of Fluvius to award.

Check our fix We offer up to €50 bonus to verify a resolved issue for us (when requested). This remains at the discretion of Fluvius to award.

In scope

Introduction

We are happy to announce our program! We've done our best to clean up our known issues and now would like to request your help to spot the ones we missed!

Our worst-case scenarios are:

  • Defacing our website is a worst-case scenario for Fluvius.
  • Defacing mainly aims to create disorder, in other words, this disrupts the function of our website, namely providing information to our customers. Malware can also be spread in this way! Fluvius mainly suffers from "- Loss of reputation" and "- Business disruption" .

Feedback Would you like to help us improve our program or have some feedback to share, please send your anonymous feedback here:

Program feedback link Please note this form will be checked periodically and should not be used for submission or support queries.

Out of scope

Application

  • Drupal usernames disclosure
  • Pre-Auth Account takeover/OAuth squatting
  • Self-XSS that can't be used to exploit other users
  • Verbose messages/files/directory listings without disclosing any sensitive information
  • CORS misconfiguration on non-sensitive endpoints
  • Missing cookie flags
  • Missing security headers
  • Cross-site Request Forgery with no or low impact
  • Presence of autocomplete attribute on web forms
  • Reverse tabnabbing
  • Bypassing rate-limits or the non-existence of rate-limits.
  • Best practices violations (password complexity, expiration, re-use, etc.)
  • Clickjacking without proven impact/unrealistic user interaction
  • CSV Injection
  • Sessions not being invalidated (logout, enabling 2FA, etc.)
  • Tokens leaked to third parties
  • Anything related to email spoofing, SPF, DMARC or DKIM
  • Content injection without being able to modify the HTML
  • Username/email enumeration
  • Email bombing
  • HTTP Request smuggling without any proven impact
  • Homograph attacks
  • XMLRPC enabled
  • Banner grabbing/Version disclosure
  • Not stripping metadata of files
  • Same-site scripting
  • Subdomain takeover without taking over the subdomain
  • Arbitrary file upload without proof of the existence of the uploaded file
  • Blind SSRF without proven business impact (pingbacks aren't sufficient)
  • Disclosed/misconfigured Google Maps API keys
  • Host header injection without proven business impact

General

  • In case that a reported vulnerability was already known to the company from their own tests, it will be flagged as a duplicate
  • Theoretical security issues with no realistic exploit scenario(s) or attack surfaces, or issues that would require complex end user interactions to be exploited
  • Spam, social engineering and physical intrusion
  • DoS/DDoS attacks or brute force attacks
  • Vulnerabilities that only work on software that no longer receive security updates
  • Attacks requiring physical access to a victim's computer/device, man in the middle or compromised user accounts
  • Recently discovered zero-day vulnerabilities found in in-scope assets within 14 days after the public release of a patch or mitigation may be reported, but are usually not eligible for a bounty
  • Reports that state that software is out of date/vulnerable without a proof-of-concept

Severity

This program follows Intigriti's triage standards

FAQ

Where can we get credentials for the app?

There are No credentials needed. It is a public website.