6.4
MEDIUM CVSS 3.1
CVE-2026-15284
King Addons for Elementor <= 51.1.62 - Authenticated (Subscriber+) Stored Cross-Site Scripting via 'form_page_id' Parameter
Description

The King Addons for Elementor plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'form_page_id' parameter in versions up to, and including, 51.1.62 This is due to insufficient input sanitization in the add_to_submissions() function, which applies sanitize_text_field() (which preserves double-quote characters) before storing the value in post meta, combined with missing output escaping in the king_addons_submissions_custom_column_content() function, which concatenates the stored value into an HTML href attribute via admin_url() without wrapping the result in esc_url(). This makes it possible for authenticated attackers, with subscriber-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.

INFO

Published Date :

July 10, 2026, 5:16 a.m.

Last Modified :

July 10, 2026, 5:16 a.m.

Remotely Exploit :

Yes !
Affected Products

The following products are affected by CVE-2026-15284 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

No affected product recoded yet

CVSS Scores
The Common Vulnerability Scoring System is a standardized framework for assessing the severity of vulnerabilities in software and systems. We collect and displays CVSS scores from various sources for each CVE.
Score Version Severity Vector Exploitability Score Impact Score Source
CVSS 3.1 MEDIUM [email protected]
Solution
Update the King Addons for Elementor plugin to fix stored XSS via insufficient input sanitization and output escaping.
  • Update King Addons for Elementor plugin to latest version.
  • Apply input sanitization to user-supplied data.
  • Ensure output data is properly escaped.
References to Advisories, Solutions, and Tools

Here, you will find a curated list of external links that provide in-depth information, practical solutions, and valuable tools related to CVE-2026-15284.

URL Resource
https://plugins.trac.wordpress.org/browser/king-addons/tags/51.1.61/includes/widgets/Form_Builder/helpers/Create_Submission.php#L68
https://plugins.trac.wordpress.org/browser/king-addons/tags/51.1.61/includes/widgets/Form_Builder/helpers/Upload_Email_File.php#L261
https://plugins.trac.wordpress.org/browser/king-addons/tags/51.1.61/includes/widgets/Form_Builder/helpers/View_Submissions_Pro.php#L305
https://plugins.trac.wordpress.org/browser/king-addons/tags/51.1.62/includes/widgets/Form_Builder/helpers/Create_Submission.php#L68
https://plugins.trac.wordpress.org/browser/king-addons/tags/51.1.62/includes/widgets/Form_Builder/helpers/Upload_Email_File.php#L261
https://plugins.trac.wordpress.org/browser/king-addons/tags/51.1.62/includes/widgets/Form_Builder/helpers/View_Submissions_Pro.php#L305
https://plugins.trac.wordpress.org/changeset/3537725/king-addons/tags/51.1.63/includes/widgets/Form_Builder/helpers/Create_Submission.php?old=3515422&old_path=king-addons%2Ftags%2F51.1.62%2Fincludes%2Fwidgets%2FForm_Builder%2Fhelpers%2FCreate_Submission.php
https://plugins.trac.wordpress.org/changeset/3537725/king-addons/tags/51.1.63/includes/widgets/Form_Builder/helpers/View_Submissions_Pro.php?old=3515422&old_path=king-addons%2Ftags%2F51.1.62%2Fincludes%2Fwidgets%2FForm_Builder%2Fhelpers%2FView_Submissions_Pro.php
https://plugins.trac.wordpress.org/changeset?old_path=%2Fking-addons/tags/51.1.62&new_path=%2Fking-addons/tags/51.1.63
https://www.wordfence.com/threat-intel/vulnerabilities/id/349ba9de-69b3-42fb-aeba-c3a24280547f?source=cve
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2026-15284 is associated with the following CWEs:

Common Attack Pattern Enumeration and Classification (CAPEC)

Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2026-15284 weaknesses.

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2026-15284 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2026-15284 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

  • New CVE Received by [email protected]

    Jul. 10, 2026

    Action Type Old Value New Value
    Added Affected [{'vendor': 'kingaddons', 'product': 'King Addons for Elementor – 80+ Elementor Widgets, 4 000+ Elementor Templates, WooCommerce, Mega Menu, Popup Builder', 'versions': [{'status': 'affected', 'version': '0', 'versionType': 'semver', 'lessThanOrEqual': '51.1.62'}], 'defaultStatus': 'unaffected'}]
    Added Description The King Addons for Elementor plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'form_page_id' parameter in versions up to, and including, 51.1.62 This is due to insufficient input sanitization in the add_to_submissions() function, which applies sanitize_text_field() (which preserves double-quote characters) before storing the value in post meta, combined with missing output escaping in the king_addons_submissions_custom_column_content() function, which concatenates the stored value into an HTML href attribute via admin_url() without wrapping the result in esc_url(). This makes it possible for authenticated attackers, with subscriber-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.
    Added CVSS V3.1 AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N
    Added CWE CWE-79
    Added Reference https://plugins.trac.wordpress.org/browser/king-addons/tags/51.1.61/includes/widgets/Form_Builder/helpers/Create_Submission.php#L68
    Added Reference https://plugins.trac.wordpress.org/browser/king-addons/tags/51.1.61/includes/widgets/Form_Builder/helpers/Upload_Email_File.php#L261
    Added Reference https://plugins.trac.wordpress.org/browser/king-addons/tags/51.1.61/includes/widgets/Form_Builder/helpers/View_Submissions_Pro.php#L305
    Added Reference https://plugins.trac.wordpress.org/browser/king-addons/tags/51.1.62/includes/widgets/Form_Builder/helpers/Create_Submission.php#L68
    Added Reference https://plugins.trac.wordpress.org/browser/king-addons/tags/51.1.62/includes/widgets/Form_Builder/helpers/Upload_Email_File.php#L261
    Added Reference https://plugins.trac.wordpress.org/browser/king-addons/tags/51.1.62/includes/widgets/Form_Builder/helpers/View_Submissions_Pro.php#L305
    Added Reference https://plugins.trac.wordpress.org/changeset/3537725/king-addons/tags/51.1.63/includes/widgets/Form_Builder/helpers/Create_Submission.php?old=3515422&old_path=king-addons%2Ftags%2F51.1.62%2Fincludes%2Fwidgets%2FForm_Builder%2Fhelpers%2FCreate_Submission.php
    Added Reference https://plugins.trac.wordpress.org/changeset/3537725/king-addons/tags/51.1.63/includes/widgets/Form_Builder/helpers/View_Submissions_Pro.php?old=3515422&old_path=king-addons%2Ftags%2F51.1.62%2Fincludes%2Fwidgets%2FForm_Builder%2Fhelpers%2FView_Submissions_Pro.php
    Added Reference https://plugins.trac.wordpress.org/changeset?old_path=%2Fking-addons/tags/51.1.62&new_path=%2Fking-addons/tags/51.1.63
    Added Reference https://www.wordfence.com/threat-intel/vulnerabilities/id/349ba9de-69b3-42fb-aeba-c3a24280547f?source=cve
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.