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OpenAdvisories
Medium · 6.8 CVE-2021-39203 EUVD-2021-25585

Private data disclosure/privilege escalation through the block editor in Wordpress

Published Sep 9, 2021 · Updated Aug 4, 2024 · Assigned by GitHub_M

Description

WordPress is a free and open-source content management system written in PHP and paired with a MySQL or MariaDB database. In affected versions authenticated users who don't have permission to view private post types/data can bypass restrictions in the block editor under certain conditions. This affected WordPress 5.8 beta during the testing period. It's fixed in the final 5.8 release.

Affected products

VendorProductAffectedFixed
WordPress wordpress-develop 5.8 beta 1 —

Fixed in Linux distributions

Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.

ReleasePackageFixed inAdvisory
Ubuntu 26.10 wordpress No fix yet —
Ubuntu 26.04 LTS wordpress No fix yet —
Ubuntu 25.10 wordpress No fix yet —
Ubuntu 24.04 LTS wordpress No fix yet —
Ubuntu 22.04 LTS wordpress No fix yet —
Show 3 more (older releases, extended support, other products)
ReleasePackageFixed inAdvisory
Ubuntu 20.04 LTS wordpress No fix yet —
Ubuntu 18.04 LTS wordpress No fix yet —
Ubuntu 16.04 LTS wordpress No fix yet —

References