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CVE-2024-4891

Essential Blocks – Page Builder Gutenberg Blocks, Patterns & Templates <= 4.5.12 - Authenticated (Contributor+) Stored Cross-Site Scripting

Published: May 18, 2024Updated: Jan 30, 2025 Sources: CVE List NVDCWE-79
NVD MITRE
6.4CVSSMEDIUM
EPSS Score
0.5%
Top 63.2%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available
Am I actually vulnerable?1 Nuclei template available — see how to check your systems. How to verify

Description

The Essential Blocks – Page Builder Gutenberg Blocks, Patterns & Templates plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the ‘tagName’ parameter in versions up to, and including, 4.5.12 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with contributor-level permissions and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.

CVSS Vector Breakdown

AV:NAC:LPR:LUI:NS:CC:LI:LA:N
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:LPrivileges Required
Low
UI:NUser Interaction
None
Scope
S:CScope
Changed
Impact
C:LConfidentiality
Low
I:LIntegrity
Low
A:NAvailability
None
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Weaknesses

CWE-79

Affected Products

Gutenberg Essential Blocks – Page Builder for Gutenberg Blocks & Patternswpdevteam
On-premCMS Plugin
Web & CMS Plugins / wordpress-plugin
essential blockswpdeveloperWeb & CMS Plugins
wpdevteamcommercialWeb & CMS Pluginsaka wpdev team, wpdevteam.com
wpdevelopercommercialWeb & CMS Plugins

Attack Graph

Products CVE Techniques Tactics

Click technique nodes to view MITRE ATT&CK details. Scroll to zoom, drag to pan.

Exploitability

Official Patch Available

MITRE ATT&CK

2 techniques
Execution
Initial Access
View detailed technique mapping

References

https://www.wordfence.com/threat-intel/vulnerabilities/id/e1bcebb3-920b-40cc-aa5c-24a1f729b28d?source=cve
wordfence.com
https://plugins.trac.wordpress.org/browser/essential-blocks/trunk/blocks/AdvancedHeading.php#L115
plugins.trac.wordpress.org
https://plugins.trac.wordpress.org/changeset/3087677/
plugins.trac.wordpress.org

Timeline

Published
May 18, 2024
Last Updated
Jan 30, 2025

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