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CVE-2024-13803

Essential Blocks – Page Builder Gutenberg Blocks, Patterns & Templates <= 5.2.3 - Authenticated (Contributor+) Stored Cross-Site Scripting

Published: Feb 26, 2025Updated: Apr 10, 2025 Sources: CVE List NVDCWE-79
NVD MITRE
6.4CVSSMEDIUM
EPSS Score
0.4%
Top 65.4%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
No Fix Available
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Description

The Essential Blocks – Page Builder Gutenberg Blocks, Patterns & Templates plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the ‘data-marker’ parameter in all versions up to, and including, 5.2.3 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 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

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

Attack Graph

Products CVE Techniques Tactics

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

Exploitability

No known exploits, KEV entries, or remediation guidance available for this vulnerability yet.

MITRE ATT&CK

2 techniques
Execution
Initial Access
View detailed technique mapping

References

http://localhost:1337/wp-content/plugins/essential-blocks/assets/admin/editor/editor.js
localhost
https://plugins.trac.wordpress.org/changeset/3242493/
plugins.trac.wordpress.org
https://www.wordfence.com/threat-intel/vulnerabilities/id/efdeca40-e021-478f-af75-c5566ae70735?source=cve
wordfence.com

Timeline

Published
Feb 26, 2025
Last Updated
Apr 10, 2025

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