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How to determine CSP for Wordpress



Announcing the arrival of Valued Associate #679: Cesar Manara
Planned maintenance scheduled April 23, 2019 at 23:30 UTC (7:30pm US/Eastern)
Come Celebrate our 10 Year Anniversary!Protecting Wordpress Admin interface on an alternate portwordpress on clustered (replication) serversHow to restore a Wordpress blog?Problems with Wordpress on Rackspace Cloud ServerCentos iptables configuration for Wordpress and Gmail smtpRsync plugin to many local wordpress installs via script or cliWordpress High load average 18 and cpu 81% on a dedicated serverHow can I get Wordpress to function under a Debian LAMP stack?chmod 640 in wp-config.php with user:www-data gets white screen on WordPressApache2 Loadbalancer with sticky session only sticky for GET, not POST



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0















I'm trying to implement Content-Security-Policy headers for Wordpress but am having trouble identifying all the URL's it needs access to. Specifically, I have tried adding the header:



Header always set Content-Security-Policy "default-src 'self' https://blogname.com:*"


However, when I set this, the "edit/create Post" page in particular throws a bunch of errors which look to be related to:



  • 3rd party fonts it needs to download

  • Other AJAX requests for javascript (e.g. for the editor)

  • Other stuff, probably related to plugins

How can I easily identify all the 3rd party URL's that are needed for Wordpress and all of its plugins, so that I can add them to the CSP header?










share|improve this question

















  • 2





    Sounds like you're on the right tracks. Identify problematic resources, patch your CSP policy and reload until all errors are gone. Then, start again with firefox or chrome depending on which was first. I don't know of any shortcut here, can be redundant and quite painful at first, ... Also consider wordpress updates may involve breaking changes.

    – SYN
    Nov 14 '16 at 3:06

















0















I'm trying to implement Content-Security-Policy headers for Wordpress but am having trouble identifying all the URL's it needs access to. Specifically, I have tried adding the header:



Header always set Content-Security-Policy "default-src 'self' https://blogname.com:*"


However, when I set this, the "edit/create Post" page in particular throws a bunch of errors which look to be related to:



  • 3rd party fonts it needs to download

  • Other AJAX requests for javascript (e.g. for the editor)

  • Other stuff, probably related to plugins

How can I easily identify all the 3rd party URL's that are needed for Wordpress and all of its plugins, so that I can add them to the CSP header?










share|improve this question

















  • 2





    Sounds like you're on the right tracks. Identify problematic resources, patch your CSP policy and reload until all errors are gone. Then, start again with firefox or chrome depending on which was first. I don't know of any shortcut here, can be redundant and quite painful at first, ... Also consider wordpress updates may involve breaking changes.

    – SYN
    Nov 14 '16 at 3:06













0












0








0








I'm trying to implement Content-Security-Policy headers for Wordpress but am having trouble identifying all the URL's it needs access to. Specifically, I have tried adding the header:



Header always set Content-Security-Policy "default-src 'self' https://blogname.com:*"


However, when I set this, the "edit/create Post" page in particular throws a bunch of errors which look to be related to:



  • 3rd party fonts it needs to download

  • Other AJAX requests for javascript (e.g. for the editor)

  • Other stuff, probably related to plugins

How can I easily identify all the 3rd party URL's that are needed for Wordpress and all of its plugins, so that I can add them to the CSP header?










share|improve this question














I'm trying to implement Content-Security-Policy headers for Wordpress but am having trouble identifying all the URL's it needs access to. Specifically, I have tried adding the header:



Header always set Content-Security-Policy "default-src 'self' https://blogname.com:*"


However, when I set this, the "edit/create Post" page in particular throws a bunch of errors which look to be related to:



  • 3rd party fonts it needs to download

  • Other AJAX requests for javascript (e.g. for the editor)

  • Other stuff, probably related to plugins

How can I easily identify all the 3rd party URL's that are needed for Wordpress and all of its plugins, so that I can add them to the CSP header?







wordpress apache2 content-security-policy






share|improve this question













share|improve this question











share|improve this question




share|improve this question










asked Nov 14 '16 at 3:00









srkiNZ84srkiNZ84

188118




188118







  • 2





    Sounds like you're on the right tracks. Identify problematic resources, patch your CSP policy and reload until all errors are gone. Then, start again with firefox or chrome depending on which was first. I don't know of any shortcut here, can be redundant and quite painful at first, ... Also consider wordpress updates may involve breaking changes.

    – SYN
    Nov 14 '16 at 3:06












  • 2





    Sounds like you're on the right tracks. Identify problematic resources, patch your CSP policy and reload until all errors are gone. Then, start again with firefox or chrome depending on which was first. I don't know of any shortcut here, can be redundant and quite painful at first, ... Also consider wordpress updates may involve breaking changes.

    – SYN
    Nov 14 '16 at 3:06







2




2





Sounds like you're on the right tracks. Identify problematic resources, patch your CSP policy and reload until all errors are gone. Then, start again with firefox or chrome depending on which was first. I don't know of any shortcut here, can be redundant and quite painful at first, ... Also consider wordpress updates may involve breaking changes.

– SYN
Nov 14 '16 at 3:06





Sounds like you're on the right tracks. Identify problematic resources, patch your CSP policy and reload until all errors are gone. Then, start again with firefox or chrome depending on which was first. I don't know of any shortcut here, can be redundant and quite painful at first, ... Also consider wordpress updates may involve breaking changes.

– SYN
Nov 14 '16 at 3:06










2 Answers
2






active

oldest

votes


















0














This policy worked for me:



Header always set Content-Security-Policy "default-src 'unsafe-inline' 'unsafe-eval' 'self'; font-src 'self' data: https://fonts.gstatic.com:443; img-src 'self' data: https://secure.gravatar.com:443; style-src 'self' 'unsafe-inline' https://fonts.googleapis.com:443"


The twitter example from:



https://www.owasp.org/index.php/Content_Security_Policy_Cheat_Sheet#Mixed_Content_Policy



was particularly helpful as a starting point.






share|improve this answer






























    0














    Use the header Content-Security-Report-Only first. This will allow you to test the policy and tune it. It works the same as the "regular" CSP header, except policy violations are not blocked, just reported. You can use the free service https://report-uri.io/ to receive the reports.






    share|improve this answer























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      2 Answers
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      active

      oldest

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      2 Answers
      2






      active

      oldest

      votes









      active

      oldest

      votes






      active

      oldest

      votes









      0














      This policy worked for me:



      Header always set Content-Security-Policy "default-src 'unsafe-inline' 'unsafe-eval' 'self'; font-src 'self' data: https://fonts.gstatic.com:443; img-src 'self' data: https://secure.gravatar.com:443; style-src 'self' 'unsafe-inline' https://fonts.googleapis.com:443"


      The twitter example from:



      https://www.owasp.org/index.php/Content_Security_Policy_Cheat_Sheet#Mixed_Content_Policy



      was particularly helpful as a starting point.






      share|improve this answer



























        0














        This policy worked for me:



        Header always set Content-Security-Policy "default-src 'unsafe-inline' 'unsafe-eval' 'self'; font-src 'self' data: https://fonts.gstatic.com:443; img-src 'self' data: https://secure.gravatar.com:443; style-src 'self' 'unsafe-inline' https://fonts.googleapis.com:443"


        The twitter example from:



        https://www.owasp.org/index.php/Content_Security_Policy_Cheat_Sheet#Mixed_Content_Policy



        was particularly helpful as a starting point.






        share|improve this answer

























          0












          0








          0







          This policy worked for me:



          Header always set Content-Security-Policy "default-src 'unsafe-inline' 'unsafe-eval' 'self'; font-src 'self' data: https://fonts.gstatic.com:443; img-src 'self' data: https://secure.gravatar.com:443; style-src 'self' 'unsafe-inline' https://fonts.googleapis.com:443"


          The twitter example from:



          https://www.owasp.org/index.php/Content_Security_Policy_Cheat_Sheet#Mixed_Content_Policy



          was particularly helpful as a starting point.






          share|improve this answer













          This policy worked for me:



          Header always set Content-Security-Policy "default-src 'unsafe-inline' 'unsafe-eval' 'self'; font-src 'self' data: https://fonts.gstatic.com:443; img-src 'self' data: https://secure.gravatar.com:443; style-src 'self' 'unsafe-inline' https://fonts.googleapis.com:443"


          The twitter example from:



          https://www.owasp.org/index.php/Content_Security_Policy_Cheat_Sheet#Mixed_Content_Policy



          was particularly helpful as a starting point.







          share|improve this answer












          share|improve this answer



          share|improve this answer










          answered Nov 15 '16 at 1:10









          srkiNZ84srkiNZ84

          188118




          188118























              0














              Use the header Content-Security-Report-Only first. This will allow you to test the policy and tune it. It works the same as the "regular" CSP header, except policy violations are not blocked, just reported. You can use the free service https://report-uri.io/ to receive the reports.






              share|improve this answer



























                0














                Use the header Content-Security-Report-Only first. This will allow you to test the policy and tune it. It works the same as the "regular" CSP header, except policy violations are not blocked, just reported. You can use the free service https://report-uri.io/ to receive the reports.






                share|improve this answer

























                  0












                  0








                  0







                  Use the header Content-Security-Report-Only first. This will allow you to test the policy and tune it. It works the same as the "regular" CSP header, except policy violations are not blocked, just reported. You can use the free service https://report-uri.io/ to receive the reports.






                  share|improve this answer













                  Use the header Content-Security-Report-Only first. This will allow you to test the policy and tune it. It works the same as the "regular" CSP header, except policy violations are not blocked, just reported. You can use the free service https://report-uri.io/ to receive the reports.







                  share|improve this answer












                  share|improve this answer



                  share|improve this answer










                  answered Aug 5 '17 at 23:12









                  JulienJulien

                  76811021




                  76811021



























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