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Django 1.7.6 release notes

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*March 9, 2015*

Django 1.7.6 fixes a security issue and several bugs in 1.7.5.

Mitigated an XSS attack via properties in ``ModelAdmin.readonly_fields``

========================================================================

The :attr:`ModelAdmin.readonly_fields

<django.contrib.admin.ModelAdmin.readonly_fields>` attribute in the Django

admin allows displaying model fields and model attributes. While the former

were correctly escaped, the latter were not. Thus untrusted content could be

injected into the admin, presenting an exploitation vector for XSS attacks.

In this vulnerability, every model attribute used in ``readonly_fields`` that

is not an actual model field (e.g. a :class:`property`) will **fail to be

escaped** even if that attribute is not marked as safe. In this release,

autoescaping is now correctly applied.

Bugfixes

========

* Fixed crash when coercing ``ManyRelatedManager`` to a string

  (:ticket:`24352`).

* Fixed a bug that prevented migrations from adding a foreign key constraint

  when converting an existing field to a foreign key (:ticket:`24447`).