GHSA-jm5p-837g-rv8g Wagtail: Improper restriction handling on Page translation API endpoint

Not scored Published

A low-privileged CMS user can view contents of pages they lack edit access to via the translation API, requiring an upgrade to fix.

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-jm5p-837g-rv8g?

GHSA-jm5p-837g-rv8g 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 the "submit translations" permission, could use the Admin API's "copy for translation" endpoint to copy an existing page that they do not have edit 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-jm5p-837g-rv8g?

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

PackageAffectedFixed in
wagtail PyPIAll versions7.0.9
wagtail PyPIAll versions7.0.9
wagtail PyPIFrom 7.1rc17.3.4
wagtail PyPIFrom 7.1rc17.3.4
wagtail PyPIFrom 7.4rc17.4.3
wagtail PyPIFrom 7.4rc17.4.3
2 more packages
wagtail PyPIFrom 8.0rc18.0rc2
wagtail PyPIFrom 8.0rc18.0rc2

How do I fix GHSA-jm5p-837g-rv8g?

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-jm5p-837g-rv8g being exploited?

There is no known exploitation of GHSA-jm5p-837g-rv8g in the wild and no public exploit code.

Sources

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