CVE-2023-6692
Ultimate Blocks – WordPress Blocks Plugin <= 3.0.8 - Authenticated(Contributor+) Stored Cross-Site Scripting via metabox
CVSS Score
6.4
EPSS Score
0.0%
EPSS Percentile
0th
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.
| CWE | CWE-79 |
| Vendor | ultimateblocks |
| Product | ultimate blocks – 25+ gutenberg blocks for block editor |
| Published | Jun 19, 2024 |
| Last Updated | Apr 8, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
Affected Versions
ultimateblocks / Ultimate Blocks – 25+ Gutenberg Blocks for Block Editor
0 ≤ 3.1.0
References
wordfence.com: https://www.wordfence.com/threat-intel/vulnerabilities/id/33e7006f-3fb9-4493-9ce5-67698c877159?source=cve plugins.trac.wordpress.org: https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&new=3022998%40ultimate-blocks%2Ftrunk&old=3016254%40ultimate-blocks%2Ftrunk&sfp_email=&sfph_mail=
Credits
Rafshanzani Suhada