CVE-2026-15284 json
King Addons for Elementor <= 51.1.62 - Authenticated (Subscriber+) Stored Cross-Site Scripting via 'form_page_id' Parameter
published 2026-07-10 4 mo ago modified 2026-07-10 4 mo ago also EUVD-2026-42793
- cvss
- 6.4
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.4%
- EPSS 0.4% chance of exploitation in 30 days, percentile 36%
- public exploits
- 0
- none known
Summary
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.
CISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- partial
- Assessed
- 4 mo ago
Exploit prediction
0.42% chance of exploitation in the next 30 days, higher than 36% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 6.4 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N |
Affected products
- kingaddons King Addons for Elementor – 80+ Elementor Widgets, 4 000+ Elementor Templates, WooCommerce, Mega Menu, Popup Builder
Classification
- Weakness
-
- CWE-79 Improper Neutralization of Input During Web Page Generation
- Technology feeds
References
- wordfence.com /threat-intel/vulnerabilities/id/349ba9de-69b3-42fb-aeba-c3a24280547f?source=cve
- plugins.trac.wordpress.org /browser/king-addons/tags/51.1.62/includes/widgets/Form_Builder/helpers/View_Submissions_Pro.php#L305
- plugins.trac.wordpress.org /browser/king-addons/tags/51.1.62/includes/widgets/Form_Builder/helpers/Create_Submission.php#L68
- plugins.trac.wordpress.org /browser/king-addons/tags/51.1.62/includes/widgets/Form_Builder/helpers/Upload_Email_File.php#L261
- plugins.trac.wordpress.org /browser/king-addons/tags/51.1.61/includes/widgets/Form_Builder/helpers/View_Submissions_Pro.php#L305
- plugins.trac.wordpress.org /browser/king-addons/tags/51.1.61/includes/widgets/Form_Builder/helpers/Create_Submission.php#L68
- plugins.trac.wordpress.org /browser/king-addons/tags/51.1.61/includes/widgets/Form_Builder/helpers/Upload_Email_File.php#L261
- plugins.trac.wordpress.org /changeset?old_path=%2Fking-addons/tags/51.1.62&new_path=%2Fking-addons/tags/51.1.63
- plugins.trac.wordpress.org /changeset/3537725/king-addons/tags/51.1.63/includes/widgets/Form_Builder/helpers/Create_Submission.php?old=35
- plugins.trac.wordpress.org /changeset/3537725/king-addons/tags/51.1.63/includes/widgets/Form_Builder/helpers/View_Submissions_Pro.php?old
Sources
- CVE List CVE-2026-15284
- NVD CVE-2026-15284
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.