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CVE-2025-14635

Happy Addons for Elementor <= 3.20.3 - Authenticated (Contributor+) Stored Cross-Site Scripting via Custom JS

Published: Dec 23, 2025Updated: Dec 23, 2025 Sources: CVE List NVDCWE-79
NVD MITRE
6.4CVSSMEDIUM
EPSS Score
0.3%
Top 83.3%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
No Fix Available
Am I actually vulnerable?1 Nuclei template available — see how to check your systems. How to verify

Description

The Happy Addons for Elementor plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'ha_page_custom_js' parameter in all versions up to, and including, 3.20.3 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, despite the intended role restriction of Custom JS to Administrators.

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

Happy Addons for Elementorthehappymonster
On-prem
Web & CMS Plugins / wordpress-plugin
thehappymonstercommercialWeb & CMS Pluginsaka happy addons for elementor

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

https://plugins.trac.wordpress.org/browser/happy-elementor-addons/tags/3.20.2/extensions/custom-js.php#L60
plugins.trac.wordpress.org
https://plugins.trac.wordpress.org/browser/happy-elementor-addons/tags/3.20.2/extensions/custom-js.php#L76
plugins.trac.wordpress.org
https://plugins.trac.wordpress.org/changeset/3421733/
plugins.trac.wordpress.org
and 1 more references View all →

Timeline

Published
Dec 23, 2025
Last Updated
Dec 23, 2025

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