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Bug 38365: Add "style-src-attr 'unsafe-inline';" to default policy 

This change adds "style-src-attr 'unsafe-inline';" to the default CSP policy.

The reason is that we have a lot of inline styles throughout Koha,
and it will take a long time to clean those up. Also, the WYSIWYG/TinyMCE
editor injects inline styles, so it might not be possible to forbid
unsafe inline styles in Koha.

Signed-off-by: David Cook <dcook@prosentient.com.au>
Signed-off-by: Martin Renvoize <martin.renvoize@openfifth.co.uk>
Signed-off-by: Lari Taskula <lari.taskula@hypernova.fi>
Signed-off-by: David Cook <dcook@prosentient.com.au>

Signed-off-by: Jonathan Druart <jonathan.druart@bugs.koha-community.org>

Signed-off-by: Jonathan Druart <jonathan.druart@bugs.koha-community.org>
This commit is contained in:
David Cook 2026-01-20 00:39:34 +00:00 committed by Jonathan Druart
parent e750e6d1f5
commit 4301202a2d
No known key found for this signature in database
GPG Key ID: A085E712BEF0E0F0
2 changed files with 4 additions and 4 deletions
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4
debian/templates/koha-conf-site.xml.in vendored
View File

@ -505,14 +505,14 @@ __END_SRU_PUBLICSERVER__
<!-- supported values: report-only, enabled. Any other value, including unset, disables the feature. -->
<csp_mode></csp_mode>
<!-- defines the value of the CSP header. _CSP_NONCE_ can be used as a placeholder for the generated CSP nonce. -->
<csp_header_value>default-src 'self'; script-src 'self' 'nonce-_CSP_NONCE_'; style-src 'self' 'nonce-_CSP_NONCE_'; img-src 'self' data:; font-src 'self'; object-src 'none'</csp_header_value>
<csp_header_value>default-src 'self'; script-src 'self' 'nonce-_CSP_NONCE_'; style-src 'self' 'nonce-_CSP_NONCE_'; style-src-attr 'unsafe-inline'; img-src 'self' data:; font-src 'self'; object-src 'none'</csp_header_value>
</opac>
<intranet>
<!-- supported values: report-only, enabled. Any other value, including unset, disables the feature. -->
<csp_mode></csp_mode>
<!-- defines the value of the CSP header. _CSP_NONCE_ can be used as a placeholder for the generated CSP nonce. -->
<csp_header_value>default-src 'self'; script-src 'self' 'nonce-_CSP_NONCE_'; style-src 'self' 'nonce-_CSP_NONCE_'; img-src 'self' data:; font-src 'self'; object-src 'none'</csp_header_value>
<csp_header_value>default-src 'self'; script-src 'self' 'nonce-_CSP_NONCE_'; style-src 'self' 'nonce-_CSP_NONCE_'; style-src-attr 'unsafe-inline'; img-src 'self' data:; font-src 'self'; object-src 'none'</csp_header_value>
</intranet>
</content_security_policy>

4
etc/koha-conf.xml
View File

@ -316,14 +316,14 @@
<!-- supported values: report-only, enabled. Any other value, including unset, disables the feature. -->
<csp_mode></csp_mode>
<!-- defines the value of the CSP header. _CSP_NONCE_ can be used as a placeholder for the generated CSP nonce. -->
<csp_header_value>default-src 'self'; script-src 'self' 'nonce-_CSP_NONCE_'; style-src 'self' 'nonce-_CSP_NONCE_'; img-src 'self' data:; font-src 'self'; object-src 'none'</csp_header_value>
<csp_header_value>default-src 'self'; script-src 'self' 'nonce-_CSP_NONCE_'; style-src 'self' 'nonce-_CSP_NONCE_'; style-src-attr 'unsafe-inline'; img-src 'self' data:; font-src 'self'; object-src 'none'</csp_header_value>
</opac>
<intranet>
<!-- supported values: report-only, enabled. Any other value, including unset, disables the feature. -->
<csp_mode></csp_mode>
<!-- defines the value of the CSP header. _CSP_NONCE_ can be used as a placeholder for the generated CSP nonce. -->
<csp_header_value>default-src 'self'; script-src 'self' 'nonce-_CSP_NONCE_'; style-src 'self' 'nonce-_CSP_NONCE_'; img-src 'self' data:; font-src 'self'; object-src 'none'</csp_header_value>
<csp_header_value>default-src 'self'; script-src 'self' 'nonce-_CSP_NONCE_'; style-src 'self' 'nonce-_CSP_NONCE_'; style-src-attr 'unsafe-inline'; img-src 'self' data:; font-src 'self'; object-src 'none'</csp_header_value>
</intranet>
</content_security_policy>