GHSA-x5cx-w6p2-mxf2 Wagtail: Improper permission handling when copying snippets

Not scored Published

A user with add permission can copy inaccessible snippets to view their contents, bypassing view restrictions in Wagtail CMS.

Exploited in the wild
Not known
Login needed
Any signed-in user
Attackable
Over the internet
Victim action needed
Not needed
Fix
Available

What is GHSA-x5cx-w6p2-mxf2?

GHSA-x5cx-w6p2-mxf2 is a missing authorization vulnerability in wagtail, published on 20 Aug 2026. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

Impact

A CMS user with "add" permission over a snippet model, but not "change" or "view" permission, could copy an existing snippet that they do not have access to, allowing them to view its contents.

Patches

Patched versions have been released as Wagtail 7.0.9, 7.3.4, 7.4.3 and 8.0rc2.

Workarounds

N/A

Acknowledgements

Many thanks to tinyb0y for reporting this issue.

For more information

If you have any questions or comments about this advisory:

Which versions are affected by GHSA-x5cx-w6p2-mxf2?

8 open source packages ship an affected version, including wagtail.

PackageAffectedFixed in
wagtail PyPIAll versions7.0.9
wagtail PyPIAll versions7.0.9
wagtail PyPIFrom 7.17.3.4
wagtail PyPIFrom 7.17.3.4
wagtail PyPIFrom 7.47.4.3
wagtail PyPIFrom 7.47.4.3
2 more packages
wagtail PyPIFrom 8.0rc18.0rc2
wagtail PyPIFrom 8.0rc18.0rc2

How do I fix GHSA-x5cx-w6p2-mxf2?

Upgrade wagtail to a fixed version for your release line: 7.0.9, 7.3.4, 7.4.3 or 8.0rc2.

Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.

Is GHSA-x5cx-w6p2-mxf2 being exploited?

There is no known exploitation of GHSA-x5cx-w6p2-mxf2 in the wild and no public exploit code.

Sources

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