Description
The Guten Post Layout – An Advanced Post Grid Collection for WordPress Gutenberg plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the ‘align’ attribute within the 'wp:guten-post-layout/post-grid' Gutenberg block in all versions up to, and including, 1.2.4 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with Contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| adreastrian | Guten Post Layout – An Advanced Post Grid Collection | ≤ 1.2.4 | — |
References
- https://www.wordfence.com/threat-intel/vulnerabilities/id/5d6d9852-424a-4d98-9926-e849bef99c2d?source=cve
- https://plugins.trac.wordpress.org/browser/guten-post-layout/trunk/src/blocks/post-grid/post-grid.php#L300
- https://wordpress.org/plugins/guten-post-layout/#developers
- https://plugins.trac.wordpress.org/browser/guten-post-layout/trunk/src/blocks/post-grid/post-grid.php#L27
- https://plugins.trac.wordpress.org/changeset/3171324/guten-post-layout/trunk/src/blocks/post-grid/post-grid.php