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QuantStamp

Bug bounty on Self-hosted quantstamp.com

Accepting reports
Go to program Website
Top reward
Not published
Top severity paid
Not published
Assets in scope
3
Public CVEs
0
Last change
No changes yet

At a glance

What to know before you start testing.

Pays cash
Amounts are not published; ask before you invest time.
Report by email
[email protected]
No safe harbor
No promise about legal action.
Publish after a fix
Coordinate the timing with the company.

Rewards

What the company's own policy page says it pays.

The policy page has no reward table. Here is what it says, in its own words.

Pays cash
Yes We will only reward the first report of a vulnerability.

Summarised with AI from the company's policy, read 12 Nov 2026, and checked word for word against it. Read the original

Scope

3 assets you may test, 20 excluded.

Domains 2

  • certificate.quantstamp.com
  • quantstamp.com

Wildcard domains 1

  • *.quantstamp.com
Out of scope (20)
  • Account/e-mail enumeration using brute-force attacks
  • Any low impact issues related to session management (i.e. concurrent sessions, session expiration, password reset/change logout, etc.)
  • Bypassing content restrictions in uploading a file without proving the file was received
  • Clickjacking/UI redressing
  • DDoS
  • Google docs, outdated references, repository links, etc. referenced from static PDFs hosted on certificate.quantstamp.com
  • Incomplete or missing SPF/DMARC/DKIM records
  • Issues related to password/credential strength, length, lock outs, or lack of brute-force/rate limiting protections
  • Lack of SSL or Mixed content
  • Missing Cookie flags
  • No Strict Transport Security (HSTS) headers set.
  • Reflected file download attacks (RFD)
  • Self-exploitation (i.e. password reset links or cookie reuse)
  • Social Engineering attacks
  • URL Redirection
  • Use of a known-vulnerable library which leads to a low-impact vulnerability (i.e. jQuery outdated version leads to low impact XSS)
  • Use of automated vulnerability / scanning tools
  • Vulnerabilities affecting users of outdated browsers, plugins or platforms
  • Vulnerabilities that allow for the injection of arbitrary text without allowing for hyperlinks, HTML, or JavaScript code to be injected
  • Vulnerabilities that require the user/victim to perform extremely unlikely actions (i.e. Self-XSS)

Rules

What the policy asks of you, and the bug types it won't reward, quoted from QuantStamp's policy. "We" in these lines means the program, not this site.

While testing

  • Act in good faith to avoid privacy violations, destruction of data, and interruption or degradation of our services (including Denial of Service)
  • Comply with all applicable laws
  • We will only reward the first report of a vulnerability.
  • Public disclosure of the vulnerability prior to resolution may cancel a pending reward.
  • We reserve the right to disqualify individuals from the program for disrespectful or disruptive behaviour.
  • We will not negotiate in response to duress or threats (e.g. we will not negotiate the payout amount under threat of withholding the vulnerability, or of releasing the vulnerability or any exposed data to the public).

Not accepted

  • Account/e-mail enumeration using brute-force attacks
  • Any low impact issues related to session management (i.e. concurrent sessions, session expiration, password reset/change logout, etc.)
  • Bypassing content restrictions in uploading a file without proving the file was received
  • Clickjacking/UI redressing
  • Incomplete or missing SPF/DMARC/DKIM records
  • Issues related to password/credential strength, length, lock outs, or lack of brute-force/rate limiting protections
  • Lack of SSL or Mixed content
  • Missing Cookie flags
  • No Strict Transport Security (HSTS) headers set.
  • Reflected file download attacks (RFD)
  • Self-exploitation (i.e. password reset links or cookie reuse)
  • URL Redirection
  • Use of a known-vulnerable library which leads to a low-impact vulnerability (i.e. jQuery outdated version leads to low impact XSS)
  • Vulnerabilities affecting users of outdated browsers, plugins or platforms
  • Vulnerabilities that allow for the injection of arbitrary text without allowing for hyperlinks, HTML, or JavaScript code to be injected
  • Vulnerabilities that require the user/victim to perform extremely unlikely actions (i.e. Self-XSS)
  • Google docs, outdated references, repository links, etc. referenced from static PDFs hosted on certificate.quantstamp.com
  • Social Engineering attacks
  • DDoS
  • Use of automated vulnerability / scanning tools

Summarised with AI from the company's policy, read 12 Nov 2026, and checked word for word against it. Read the original

Changes

Tracked since 11 Nov 2026. Last checked 5 hours ago.

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

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.