CSP for HubSpot

crm

marketing

Using HubSpot with Content Security Policy

Hubspot is a major CRM with many features. As such, is has multiple different domains (used for tracking and various marketing features), which can cause a great challenge when trying to integrate a CSP (Content-Security-Policy) to a site using Hubspot. We suggest adding all the various directives listed below - even if they are not currently used by your site - it's better to add in advance, in order to ensure easy integration of new abilities with your CSP.

Allow these directives in your CSP, to support HubSpot in your Content Security Policy:

script-src
  https://js.hs-scripts.com
  https://js.hsleadflows.net
  https://js.hs-banner.com
  https://js.hsadspixel.net
  https://js.hubspotfeedback.com
  https://js.usemessages.com
  https://js.hs-analytics.net
  https://js.hscollectedforms.net
  https://js.hsforms.net
  https://js-na1.hs-scripts.com
  https://forms.hsforms.com;
style-src
  'unsafe-inline';
frame-src
  *.hubspot.com
  forms.hsforms.com
  js.hsadspixel.net
  js.hscollectedforms.net
  js.usemessages.com;
child-src
  app.hubspot.com
  forms.hsforms.com
  js.hsadspixel.net
  js.hscollectedforms.net
  js.usemessages.com;
img-src
  *.hubspot.com
  cdn2.hubspot.net
  forms.hsforms.com;
font-src
  data:;
connect-src
  *.hubspot.com
  api.hubapi.com
  js.usemessages.com
  js.hsleadflows.net
  js.hs-banner.com
  js.hubspotfeedback.com
  js.hsadspixel.net
  js.hs-analytics.net
  js.hs-scripts.com
  forms.hsforms.com;
form-action
  forms.hsforms.com
  forms.hubspot.com;

The main domains used by HubSpot are:

hubspot.com
hubapi.com
hsleadflows.net
usemessages.com
hs-banner.com
hubspotfeedback.com
hsadspixel.net
hs-analytics.net
hs-scripts.com
hubspot.net
hscollectedforms.net
hsforms.net
hsforms.com

Sources:

Using HubSpot Marketing with Content Security Policy(Offical Docs)

RapidSec CSP Generator(RapidSec Data Network)

Generate a CSP with HubSpot

Example Content-Security-Policy violations / reports:

Using the above CSP package, will fix these errors that you may be seeing in your console logs:

script-src/script-src-elem/script-src-attrviolations

Refused to load the script 'https://js.hsleadflows.net/leadflows.js' because it violates the following Content Security Policy directive: "script-src 'self' 'report-sample'". Note that 'script-src-elem' was not explicitly set, so 'script-src' is used as a fallback.

If you see inline script errors, you need to add SHA-256 hashes / nonces to your CSP with RapidSec:

Refused to execute inline script because it violates the following Content Security Policy directive: "script-src 'self' 'report-sample'". Either the 'unsafe-inline' keyword, a hash ('sha256-RFWPLDbv2BY+rCkDzsE+0fr8ylGr2R2faWMhq4lfEQc='), or a nonce ('nonce-...') is required to enable inline execution.

If you see inline eval() errors, RapidSec will generate your CSP with the specific content of the errors:

Refused to evaluate a string as JavaScript because 'unsafe-eval' is not an allowed source of script in the following Content Security Policy directive: "script-src 'self' 'report-sample'".

style-src/style-src-elem/style-src-attrviolations

Refused to load the stylesheet 'hubspot.com' because it violates the following Content Security Policy directive: "style-src 'self' 'report-sample'". Note that 'style-src-elem' was not explicitly set, so 'style-src' is used as a fallback.

If you see inline style errors, you need to add SHA-256 hashes / nonces to your CSP with RapidSec:

Refused to apply inline style because it violates the following Content Security Policy directive: "style-src 'self' 'report-sample'". Either the 'unsafe-inline' keyword, a hash ('sha256-RFWPLDbv2BY+rCkDzsE+0fr8ylGr2R2faWMhq4lfEQc='), or a nonce ('nonce-...') is required to enable inline execution.

font-srcviolations

Refused to load the font 'hubspot.com' because it violates the following Content Security Policy directive: "font-src 'self'"

img-srcviolations

Refused to load the image 'hubspot.com' because it violates the following Content Security Policy directive: "img-src 'self'".

frame-srcviolations

[Report Only] Refused to frame 'hubspot.com' because it violates the following Content Security Policy directive: "frame-src 'self'".

form-actionviolations

[Report Only] Refused to send form data to 'hubspot.com' because it violates the following Content Security Policy directive: "form-action 'self'".

connect-srcviolations

[Report Only] Refused to connect to 'hubspot.com' because it violates the following Content Security Policy directive: "connect-src 'self'"

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