CVE-2023-45809: Infoleak
Impact
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.
Patches Patched versions have been released as Wagtail 4.1.9 (LTS), 5.0.5 and 5.1.3. The fix is also included in Release Candidate 1 of the forthcoming Wagtail 5.2 release.
Workarounds None.
Acknowledgements Many thanks to @quyenheu for reporting this issue.
For more information If you have any questions or comments about this advisory:
Visit Wagtail's support channels Email us at security@wagtail.org (view our security policy for more information).
Other sources
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.
Affected Software
Remediation
Event History
Frequently Asked Questions
What is the impact of CVE-2023-45809?
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, disclosing the display names of user accounts.
How can an attacker exploit CVE-2023-45809?
An attacker with a limited-permission editor account can send a direct URL request to the vulnerable admin view to extract the display names of user accounts.
What is the severity of CVE-2023-45809?
The severity of CVE-2023-45809 is low with a CVSS score of 2.7.
Which versions of Wagtail are affected by CVE-2023-45809?
Wagtail versions up to 5.1.3, 5.0.5, and 4.1.9 are affected by CVE-2023-45809.
How do I fix CVE-2023-45809?
To fix CVE-2023-45809, upgrade to Wagtail version 5.1.3, 5.0.5, or 4.1.9, depending on the currently installed version.