Description
The Recipe Card Blocks Lite plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the recipe block's 'summary' and 'notes' attributes in all versions up to, and including, 3.4.13. This is due to the 'WPZOOM_Helpers::deserialize_block_attributes' method converting unicode-encoded sequences back into HTML characters after sanitization has already been applied. This makes it possible for authenticated attackers, with Author-level access and above, to inject arbitrary web scripts in pages that execute whenever a user accesses the published post or the print view of an injected recipe.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| wpzoom | Recipe Card Blocks Lite | ≤ 3.4.13 | — |
References
- https://www.wordfence.com/threat-intel/vulnerabilities/id/a684bf5f-7cf6-43b1-b457-fdc2ba74852d?source=cve
- https://plugins.trac.wordpress.org/browser/recipe-card-blocks-by-wpzoom/trunk/src/classes/class-wpzoom-print-template-manager.php#L224
- https://plugins.trac.wordpress.org/browser/recipe-card-blocks-by-wpzoom/trunk/src/classes/class-wpzoom-helpers.php#L253
- https://plugins.trac.wordpress.org/browser/recipe-card-blocks-by-wpzoom/trunk/src/structured-data-blocks/class-wpzoom-recipe-card-block.php#L582
- https://plugins.trac.wordpress.org/browser/recipe-card-blocks-by-wpzoom/trunk/src/structured-data-blocks/class-wpzoom-recipe-card-block.php#L592
- https://plugins.trac.wordpress.org/changeset/3470036/