Medium severity · published Jan 11, 2024
CVE-2023-7071
Essential Blocks – Page Builder Gutenberg Blocks, Patterns & Templates <= 4.4.6 - Authenticated (Contributor+) Stored Cross-Site Scripting
5.4
CVSS
0.4%
EPSS
No
On KEV
Description
The Essential Blocks – Page Builder Gutenberg Blocks, Patterns & Templates plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the Table of Contents block in all versions up to, and including, 4.4.6 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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
Required
Confidentiality
Low
Integrity
Low
Availability
None
Scope
Changed
Exploitation
Is it being used?
Exploit prediction (EPSS)0.4% · higher than 35% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
GE
Gutenberg Essential Blocks – Page Builder for Gutenberg Blocks & Patterns · wpdevteam
through 4.4.6 · source: vendor
EB
Essential Blocks · Wpdeveloper
through 4.4.6 · source: NVD
Affected product
GE
Gutenberg Essential Blocks – Page Builder for Gutenberg Blocks & Patterns
wpdevteam
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2023-7071
CVE.org
https://www.cve.org/CVERecord?id=CVE-2023-7071
Issue Tracking
https://plugins.trac.wordpress.org/browser/essential-blocks/trunk/blocks/TableOfContents.php#L138
Patch
https://plugins.trac.wordpress.org/changeset/3018547/essential-blocks/tags/4.4.7/blocks/TableOfContents.php
Third Party Advisory
https://www.wordfence.com/threat-intel/vulnerabilities/id/f969cb24-734f-46e5-a74d-fddf8e61e096?source=cve
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