CVE-2024-3343

Otter Blocks – Gutenberg Blocks, Page Builder for Gutenberg Editor & FSE <= 2.6.8 - Authenticated (Contributor+) Stored Cross-Site Scripting via Block Attributes

Published Apr 11, 2024 CVSS 3.1 · 6.4 Medium EPSS < 1% KEV · Not listed
Description
The Otter Blocks – Gutenberg Blocks, Page Builder for Gutenberg Editor & FSE plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the plugin's block attributes in all versions up to, and including, 2.6.8 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.

Remediation

No solution or workaround provided in the CVE record

Tracking

Sign in to view the affected projects.

Advisories

Source ID Title
EUVD EUVD EUVD-2024-31933 The Otter Blocks – Gutenberg Blocks, Page Builder for Gutenberg Editor & FSE plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the plugin's block attributes in all versions up to, and including, 2.6.8 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.
History
Type Values Removed Values Added
Title Otter Blocks – Gutenberg Blocks, Page Builder for Gutenberg Editor & FSE <= 2.6.8 - Authenticated (Contributor+) Stored Cross-Site Scripting via Block Attributes
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
First Time appeared Themeisle
Themeisle otter Blocks
Weaknesses CWE-79
CPEs cpe:2.3:a:themeisle:otter_blocks:*:*:*:*:*:wordpress:*:*
Vendors & Products Themeisle
Themeisle otter Blocks
Weaknesses

Sources

Status
PUBLISHED
Assigner
Wordfence
Published
Updated
Apr 8, 2026, 4:58 PM
Reserved
Apr 4, 2024, 8:28 PM
Status
Modified
Published
Apr 11, 2024, 11:15 AM
Modified
Jun 17, 2026, 7:43 AM