#17419: JSON template tag
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Reporter: lau | Owner: aaugustin
Type: New feature | Status: closed
Component: Template system | Version: master
Severity: Normal | Resolution: wontfix
Keywords: json template tag | Triage Stage: Accepted
Has patch: 1 | Needs documentation: 0
Needs tests: 0 | Patch needs improvement: 0
Easy pickings: 0 | UI/UX: 0
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Comment (by abhillman):
Replying to [comment:18 aaugustin]:
> I've finally changed my mind on this ticket. There's a good reason why
it isn't recommended to just include raw JSON data in the HTML: it's
[https://www.owasp.org/index.php/XSS_(Cross_Site_Scripting)_Prevention_Cheat_Sheet
extremely hard to prevent XSS] unless you enforce other rules about the
context, and this isn't under the control of Django.
>
> It's obviously possible to solve the problem for particular use cases
with controlled data. In such cases, the implementation only takes a few
lines (see the first patch on this ticket). However, it appears very hard
to provide a general `|json` filter that will be safe in all contexts.
>
> If you think you have a working implementation, please submit it on the
mailing list. I'll expect strong evidence that it's secure :)
This is a pretty old ticket. But out of curiosity, how would you deal with
this kind of situation, Aymeric? That is, binding some data to a
JavaScript variable. Just create an API endpoint to grab data via ajax and
bind it to a variable there? Create a template tag for your own usage
given that you are aware of its potential security issues?
--
Ticket URL: <https://code.djangoproject.com/ticket/17419#comment:20>
Django <https://code.djangoproject.com/>
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