CVE-2023-45809 Disclosure of user names via admin bulk action views in wagtail

Low 2.7 Published Updated

Limited-permission editors can retrieve display names of any user via bulk action views, exposing sensitive user information.

Exploited in the wild
Not known
Login needed
An administrator
Attackable
Over the internet
Victim action needed
Not needed
Fix
Available

What is CVE-2023-45809?

CVE-2023-45809 is a low-severity vulnerability in wagtail, published on 19 Oct 2023. An attacker needs administrator access to exploit it, with no action from the victim.

Official description

Wagtail is an open source content management system built on Django. A user with a limited-permission editor account for the Wagtail admin can make a direct URL request to the admin view that handles bulk actions on user accounts. While authentication rules prevent the user from making any changes, the error message discloses the display names of user accounts, and by modifying URL parameters, the user can retrieve the display name for any user. The vulnerability is not exploitable by an ordinary site visitor without access to the Wagtail admin. Patched versions have been released as Wagtail 4.1.8 (LTS), 5.0.5 and 5.1.3. The fix is also included in Release Candidate 1 of the forthcoming Wagtail 5.2 release. Users are advised to upgrade. There are no known workarounds for this vulnerability.

Weakness: CWE-532, CWE-425, CWE-200

Which versions are affected by CVE-2023-45809?

7 open source packages ship an affected version, including wagtail. It affects 1 product.

PackageAffectedFixed in
wagtail PyPIAll versions4.1.9, 5.0.5, 5.1.3
wagtail PyPIAll versions4.1.9
wagtail PyPIAll versions4.1.9
wagtail PyPIFrom 4.2.05.0.5
wagtail PyPIFrom 4.2.05.0.5
wagtail PyPIFrom 5.1.05.1.3
1 more packages
wagtail PyPIFrom 5.1.05.1.3

Products include Torchbox Wagtail.

How do I fix CVE-2023-45809?

Upgrade wagtail to a fixed version for your release line: 4.1.9, 5.0.5 or 5.1.3.

Is CVE-2023-45809 being exploited?

There is no known exploitation of CVE-2023-45809 in the wild and no public exploit code.

Sources

Also known as GHSA-fc75-58r8-rm3h, PYSEC-2023-219.

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