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Bug bounty
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Deezer Bug Bounty Program

The Deezer platform provides an innovative music streaming service that has attracted millions of users worldwide. Deezer lets them instantly play the music they want to hear and guarantees high-quality sound, diversification and personalized music curation. Deezer is committed to working with security experts across the world to stay up to date with the latest security techniques. If you have discovered a security issue that you believe we should know about, please let us know about it and we'll do our best to quickly correct the issue.

Reward

Bounty
Hall of fame
€0
Low
€100
Medium
€400
High
€1,200
Critical
€2,500

Program

Avg reward
-
Max reward
-

Scopes
13
Supported languages
English

Hacktivity

Reports
829
1st response
< 1 day
Reports last 24h
5
Reports last week
27
Reports this month
30

About

Deezer

The Deezer platform provides an innovative music streaming service that has attracted millions of users worldwide. Deezer lets them instantly play the music they want to hear and guarantees high-quality sound, diversification and personalized music curation.

Deezer is committed to working with security experts across the world to stay up to date with the latest security techniques. If you have discovered a security issue that you believe we should know about, please let us know about it and we'll do our best to quickly correct the issue.

We take security issues seriously and we're big believers in protecting privacy and security. Our bug bounty programs has been put in place to give a tip of the hat to software security researchers.

Program Rules

Testing Policy, Responsible Disclosure

Please adhere to the following rules while performing research on this program:

  • Make sure to apply hunting requirements policy, specifically User-Agent, so that our teams know the detected activity is related to this program. If not, you might be blocked from our assets due to our security protocols.
  • Denial of service (DoS) attacks on Deezer applications, servers, networks or infrastructure are strictly forbidden.
  • Avoid tests that could cause degradation or interruption of our services.
  • Do not use automated scanners or tools that generate large amount of network traffic
  • Do not leak, copy, manipulate, or destroy any user data or files in any of our applications/servers.
  • No vulnerability disclosure, full, partial or otherwise, is allowed.

Reward Eligibility

We are happy to thank everyone who submits valid reports which help us improve the security of Deezer, however only those that meet the following eligibility requirements may receive a monetary reward:

  • You must be the first reporter of a vulnerability.
  • The vulnerability must be a qualifying vulnerability
  • The report must contain the following elements:
    • Clear textual description of the vulnerability, how it can be exploited, the security impact it has on the application, its users and Deezer, and remediation advice on fixing the vulnerability
    • Proof of exploitation: screenshots demonstrating the exploit was performed, and showing the final impact
    • Provide complete steps with the necessary information to reproduce the exploit, including (if necessary) code snippets, payloads, commands etc
  • You must not break any of the testing policy rules listed above
  • You must not be a former or current employee of Deezer or one of its contractors.

Reward amounts are based on:

  • Reward grid of the report's scope
  • CVSS scoring and actual business impact of the vulnerability upon performing risk analysis

Complements about our scopes

Deezer Bug Bounty Program

  • If your Deezer account is deactivated by our system because it detected a malicious attempt, please contact the Bounty Program manager to ask for its re-activation.

  • The user agent bug-bounty-HunterName (replace HunterName by your nickname) is mandatory during your tests. If you don’t use it, we may ban you our assets for security reasons.

  • Note that it can happen sometimes that our teams are already aware and working on a vulnerability before your reported it, we'll thank you for having reported it nevertheless in that case the report won't be eligible for a reward.

  • Any non-security related issue will not be eligible for a money reward and should be sent to http://support.deezer.com/requests/new


Reward

Asset value CVSS
Low
CVSS
Medium
CVSS
High
CVSS
Critical
Low
€100€400€1,200€2,500

Systemic issues

1st report100%
2nd report100%
3rd report75%
4th report50%
5th report25%
6th+ report10%

We appreciate all valid reports submitted to our program that enhance our security. However, please note that if a similar issue (see definition in 'More info') has already been reported, by you or any other hunter, the reward will be decreasing according to these percentages.


Scopes

ScopeTypeAsset value
www.deezer.com Web application
Low
Low
€100
Medium
€400
High
€1,200
Critical
€2,500
connect.deezer.com Web application
Low
Low
€100
Medium
€400
High
€1,200
Critical
€2,500
api.deezer.com API
Low
Low
€100
Medium
€400
High
€1,200
Critical
€2,500
payment.deezer.com Web application
Low
Low
€100
Medium
€400
High
€1,200
Critical
€2,500
https://play.google.com/store/apps/details?id=deezer.android.app Mobile application Android
Low
Low
€100
Medium
€400
High
€1,200
Critical
€2,500
https://apps.apple.com/fr/app/deezer-musique-podcast/id292738169 Mobile application IOS
Low
Low
€100
Medium
€400
High
€1,200
Critical
€2,500
zen.deezer.com Web application
Low
Low
€100
Medium
€400
High
€1,200
Critical
€2,500
wellbeing.deezer.com API
Low
Low
€100
Medium
€400
High
€1,200
Critical
€2,500
wellbeing.dzcdn.net Other
Low
Low
€100
Medium
€400
High
€1,200
Critical
€2,500
https://play.google.com/store/apps/details?id=com.deezer.zen Mobile application Android
Low
Low
€100
Medium
€400
High
€1,200
Critical
€2,500
https://apps.apple.com/be/app/zen-by-deezer-m%C3%A9ditation/id1597326355 Mobile application IOS
Low
Low
€100
Medium
€400
High
€1,200
Critical
€2,500
account.deezer.com Web application
Low
Low
€100
Medium
€400
High
€1,200
Critical
€2,500
pipe.deezer.com API
Low
Low
€100
Medium
€400
High
€1,200
Critical
€2,500

Out of scopes

  • developers.deezer.com
  • partners.deezer.com
  • cdn-files.deezer.com
  • cdn-content.deezer.com
  • support.deezer.com
  • deezercommunity.com
  • deezer-blog.com
  • deezer-brandsolutions.com
  • deezerjobs.com
  • desktop apps (electron)
  • All domains or subdomains not listed in the above list of 'Scopes'

Vulnerability types

Qualifying vulnerabilities

  • SQL Injection (SQLi)
  • Cross-Site Scripting (XSS)
  • Remote Code Execution (RCE)
  • Insecure Direct Object Reference (IDOR)
  • Horizontal and vertical privilege escalation
  • Authentication bypass & broken authentication
  • Business Logic Errors vulnerability with real security impact
  • Local files access and manipulation (LFI, RFI, XXE, SSRF, XSPA)
  • Cross-Origin Resource Sharing (CORS) with real security impact
  • Cross-site Request Forgery (CSRF) with real security impact
  • Open Redirect with real security impact
  • Exposed secrets, credentials or sensitive information on an asset under our control and affecting at least one of our scopes.

Non-qualifying vulnerabilities

  • Tabnabbing
  • Missing cookie flags
  • Content/Text injections
  • Mixed content warnings
  • Clickjacking/UI redressing
  • Denial of Service (DoS) attacks
  • Known CVEs without working PoC
  • Open ports without real security impact
  • Social engineering of staff or contractors
  • Presence of autocomplete attribute on web forms
  • Vulnerabilities affecting outdated browsers or platforms
  • Self-XSS or XSS that cannot be used to impact other users
  • Outdated libraries without a demonstrated security impact
  • Any hypothetical flaw or best practices without exploitable PoC
  • Expired certificate, best practices and other related issues for TLS/SSL certificates
  • Unexploitable vulnerabilities (ex: XSS or Open Redirect in HTTP Host Header)
  • Reports with attack scenarios requiring MITM or physical access to victim's device
  • Missing security-related HTTP headers which do not lead directly to a vulnerability
  • Unauthenticated / Logout / Login and other low-severity Cross-Site Request Forgery (CSRF)
  • Invalid or missing SPF (Sender Policy Framework), DKIM, DMARC records
  • Session expiration policies (no automatic logout, invalidation after a certain time or after a password change)
  • Disclosure of information without direct security impact (e.g. stack traces, path disclosure, directory listings, software versions, IP disclosure, 3rd party secrets)
  • CSV injection
  • HTTP Strict Transport Security Header (HSTS)
  • Subdomain takeover without a full working PoC
  • Blind SSRF without direct impact (e.g. DNS pingback)
  • Lack of rate-limiting, brute-forcing or captcha issues
  • User enumeration (email, alias, GUID, phone number)
  • Password requirements policies (length / complexity / reuse)
  • Ability to spam users (email / SMS / direct messages flooding)
  • Disclosed / misconfigured Google API key (including Google Maps)
  • Recently disclosed 0-day vulnerabilities (less than 30 days since patch release)
  • Password reset token leak on trusted third-party website via Referer header (eg Google Analytics, Facebook…)
  • Stolen secrets, credentials or information gathered from a third-party asset that we have no control over
  • Exposed secrets, credentials or information on an asset under our control that are not applicable to the program’s scope
  • Provisioning Errors or Offer Change (High) on the scope of all Zen products
  • Password requirements policies (length / complexity / reuse)
  • Task Hijacking
  • Crashing your own application
  • Google API Keys (eg. Analytics, Maps)
  • Lack of code obfuscation / binary protection
  • Exploiting a generic Android or iOS vulnerability
  • Information requiring physical access to user device
  • Exploits that are only possible on rooted/jailbroken device
  • Exploits that are only possible on Android version 8.0.25 and below
  • Lack of encryption on internal databases/preference files on mobile device
  • Vulnerabilities affecting outdated application binaries - only exploits working on latest
  • Android/iOS versions from the respective app stores will be accepted
  • Lack of client-side protections on mobile binaries: SSL pinning/binary protection/code obfuscation/jailbreak detection/root detection/anti-debugging controls/etc

Reports of leaks and exposed credentials

In the context of this program, we do not intend to encourage, accept or reward reports of leaks that are not applicable to our program’s scope and policy. To summarize our policy, you may refer to the below table:

Type of leak
Source of leak is in-scope
Source of leak belongs to the Organization and is out-of-scope
Source of leak does not belong to the Organization and is out-of-scope
Impact is in-scope (e.g. valid credentials on an in-scope asset)
checked Eligible
checked Eligible
checked Not eligible
Impact is out-of-scope (e.g. valid credentials for an out-of-scope asset)
checked Eligible
checked Not eligible
checked Not eligible

Hunting requirements

Account access

Self-register

Deezer Scope

  • You can self-register wherever it is allowed.
  • Please use your YesWeHack email aliases which are available here for account creation.

User agent

Please append to your user-agent header the following value: ' bug-bounty-HunterName '.


Hunters collaboration

When submitting new report, you can add up to 5 collaborators, and define the reward split ratio.

For more information, see help center.
Note: For reports that have already been rewarded, it is not possible to redistribute the rewards.

To submit a vulnerability report, you need to login with your hunter account.