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.

Introduction

Dropbox is committed to protecting the security of our users and products. We welcome vulnerability reports from the security community under our VDP. This program allows researchers to report potential vulnerabilities in Dropbox systems in a safe, responsible, and legally protected manner—without the expectation of monetary reward. Reports may be eligible for discretionary recognition or a token of appreciation.

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.

Although this Vulnerability Disclosure Program applies broadly to Dropbox-owned products, services, and infrastructure, security researchers must not probe or interact with any systems that fall outside Dropbox's direct ownership, operational control, or explicit authorization.

This includes, but is not limited to:

• Third-party service providers or partners that may host Dropbox-related assets, such as cloud platforms, vendors handling logistics or billing, or marketing sites not directly managed by Dropbox.

• Domains, subdomains, or applications containing the word "Dropbox" that are not officially listed as in-scope or verifiably under Dropbox's administration.

• User-generated or community-hosted platforms, like discussion boards, project mirrors, or unofficial tools referencing Dropbox technologies.

• Social accounts, fan-run pages, or influencer content that mention Dropbox but are not maintained by Dropbox personnel.

If you're unsure about whether a target is legitimately under Dropbox's control, please reach out to the program team via bugbounty@dropbox.com. Testing unauthorized infrastructure may result in removal from the program and potential legal consequences, depending on the jurisdiction.

Application

• Wordpress 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

Mobile

• Shared links leaked through the system clipboard
• Any URIs leaked because a malicious app has permission to view URIs opened
• The absence of certificate pinning
• Sensitive data in URLs/request bodies when protected by TLS
• Lack of obfuscation
• Path disclosure in the binary
• Lack of jailbreak & root detection
• Crashes due to malformed URL Schemes
• Lack of binary protection (anti-debugging) controls, mobile SSL pinning
• Snapshot/Pasteboard leakage
• Runtime hacking exploits (exploits only possible in a jailbroken environment)
• API key leakage used for insensitive activities/actions

This program follows Intigriti's triage standards based on the proof of concept.

Do you offer paid bounties?

Yes, but not through our VDP. If you would like to be considered for a bounty, please submit your report on our paid bug bounty program.

I am receiving spam or someone is abusing Dropbox technology. Where should I file my report?

This VDP is for responsible disclosure of security vulnerabilities and bugs. If you experience any abuse involving Dropbox technologies, please report it via https://dropbox.com/report_abuse