CVE-2026-9601
The Stackable – Page Builder Gutenberg Blocks plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'update_block_style' endpoint in all versions up to, and including, 3.19.9 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.
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The sources do not list affected products or versions for this vulnerability yet.
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Published
First publication at the source
Collected
First seen by Baba Yaga Security
Last modified
Latest change at the source