Vulnerability in Otter Blocks – Gutenberg Blocks, Page Builder for Gutenberg Editor & FSE — CVE-2026-109933

What to do now

Update Otter Blocks – Gutenberg Blocks, Page Builder for Gutenberg Editor & FSE to 3.2.8 or later.

Affected versions

• Everything before 3.2.8

The Otter Blocks – Gutenberg Blocks, Page Builder for Gutenberg Editor & FSE plugin for WordPress is vulnerable to Stored Cross-Site Scripting in all versions up to 3.2.8. This is 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.

This description is reproduced verbatim from the public vulnerability record.

• https://www.wordfence.com/threat-intel/vulnerabilities/id/54b02454-43fc-4f20-815b-7a95ff2bc23c?source=api-prod

Part of this record comes from Wordfence Intelligence. Original: https://www.wordfence.com/threat-intel/vulnerabilities/id/54b02454-43fc-4f20-815b-7a95ff2bc23c
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