The OpenStreetMap for Gutenberg and WPBakery Page Builder (formerly Visual Composer) WordPress plugin through 1.2.0 does not validate and escape some of its block options before outputting them back in a page/post where the block is embed, which could allow users with the contributor role and above to perform Stored Cross-Site Scripting attacks.

The Out of the Block: OpenStreetMap plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the plugin's ootbquery shortcode in all versions up to, and including, 2.8.3 due to insufficient input sanitization and output escaping on user supplied attributes. 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.

The OSM WordPress plugin through 6.01 does not validate and escape some of its shortcode attributes, which could allow users with a role as low as contributor to perform Stored Cross-Site Scripting attack.