The Ultimate Blocks – WordPress Blocks Plugin plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the plugin's tab anchor metabox in all versions up to, and including, 3.0.8 due to insufficient input sanitization and output escaping on user supplied attributes. This makes it possible for authenticated attackers with contributor-level and above permissions to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.

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Advisories
Source ID Title
EUVD EUVD EUVD-2023-58913 The Ultimate Blocks – WordPress Blocks Plugin plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the plugin's tab anchor metabox in all versions up to, and including, 3.0.8 due to insufficient input sanitization and output escaping on user supplied attributes. This makes it possible for authenticated attackers with contributor-level and above permissions to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.
Fixes

Solution

No solution given by the vendor.


Workaround

No workaround given by the vendor.

History

Wed, 08 Apr 2026 17:45:00 +0000

Type Values Removed Values Added
Weaknesses CWE-79

Thu, 26 Feb 2026 17:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

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


Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: Wordfence

Published:

Updated: 2026-04-08T16:45:36.832Z

Reserved: 2023-12-11T17:11:07.169Z

Link: CVE-2023-6692

cve-icon Vulnrichment

Updated: 2024-08-02T08:35:14.891Z

cve-icon NVD

Status : Awaiting Analysis

Published: 2024-06-19T06:15:10.873

Modified: 2026-04-08T18:18:39.977

Link: CVE-2023-6692

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.

Weaknesses