[Security] Bump wagtail from 2.7.1 to 2.7.2

[dependabot-preview[bot]]

Bumps wagtail from 2.7.1 to 2.7.2. This update includes a security fix.

Vulnerabilities fixed

Sourced from The GitHub Security Advisory Database.

Possible XSS attack in Wagtail

Impact

A cross-site scripting (XSS) vulnerability exists on the page revision comparison view within the Wagtail admin interface. A user with a limited-permission editor account for the Wagtail admin could potentially craft a page revision history that, when viewed by a user with higher privileges, could perform actions with that user's credentials. The vulnerability is not exploitable by an ordinary site visitor without access to the Wagtail admin.

Patches

Patched versions have been released as Wagtail 2.7.2 (for the LTS 2.7 branch) and Wagtail 2.8.1 (for the current 2.8 branch).

Workarounds

Site owners who are unable to upgrade to the new versions can disable the revision comparison view by adding the following URL route to the top of their project's urls.py configuration:

from django.views.generic.base import RedirectView
urlpatterns = [
url(r'^admin/pages/(\d+)/revisions/compare/', RedirectView.as_view(url='/admin/')),
# ...
]

Acknowledgements

Many thanks to Vlad Gerasimenko for reporting this issue.

For more information

... (truncated)

Affected versions: >= 1.9.0, < 2.7.2

Release notes

Sourced from wagtail's releases.

2.7.2

CVE-2020-11001 - prevent XSS attack via page revision comparison view (Vlad Gerasimenko, Matt Westcott)

Changelog

Sourced from wagtail's changelog.

2.7.2 (14.04.2020)

 * Fix: CVE-2020-11001 - prevent XSS attack via page revision comparison view (Vlad Gerasimenko, Matt Westcott)

Commits

• baa4acc Version bump to 2.7.2
• 55cb4b8 Release notes for 2.7.2
• 60b1146 Don't mark the translatable string 'None' as safe
• e4c0a9f Apply proper HTML escaping on StreamField block comparisons
• See full diff in compare view

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[dependabot-preview[bot]]

Superseded by #1302.