Impact
Misuse of the set-screen-option filter's return value allows arbitrary user meta fields to be saved. It does require an admin to install a plugin that would misuse the filter. Once installed, it can be leveraged by low privileged users.
Patches
This has been patched in WordPress 5.4.2, along with all the previously affected versions via a minor release. Automatic updates are enabled by default for minor releases and we strongly recommend that you keep them enabled.
For more information
If you have any questions or comments about this advisory:
Impact
Misuse of the
set-screen-optionfilter's return value allows arbitrary user meta fields to be saved. It does require an admin to install a plugin that would misuse the filter. Once installed, it can be leveraged by low privileged users.Patches
This has been patched in WordPress 5.4.2, along with all the previously affected versions via a minor release. Automatic updates are enabled by default for minor releases and we strongly recommend that you keep them enabled.
For more information
If you have any questions or comments about this advisory: