Happy Addons for Elementor <= 3.21.0 - Insecure Direct Object Reference to Authenticated (Contributor+) Post Duplication via 'post_id' Parameter

5.4
Authorization Bypass Through User-Controlled Key
CVE CVE-2026-2917
CVSS 5.4 (Medium)
Publicly Published March 10, 2026
Last Updated July 8, 2026
Researcher Dmitrii Ignatyev - CleanTalk Inc

Description

The Happy Addons for Elementor plugin for WordPress is vulnerable to Insecure Direct Object Reference in all versions up to, and including, 3.21.0 via the `ha_duplicate_thing` admin action handler. This is due to the `can_clone()` method only checking `current_user_can('edit_posts')` (a general capability) without performing object-level authorization such as `current_user_can('edit_post', $post_id)`, and the nonce being tied to the generic action name `ha_duplicate_thing` rather than to a specific post ID. This makes it possible for authenticated attackers, with Contributor-level access and above, to clone any published post, page, or custom post type by obtaining a valid clone nonce from their own posts and changing the `post_id` parameter to target other users' content. The clone operation copies the full post content, all post metadata (including potentially sensitive widget configurations and API tokens), and taxonomies into a new draft owned by the attacker.

References

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Vulnerability Details for Happy Addons for Elementor

Software Type Plugin
Software Slug happy-elementor-addons (view on wordpress.org)
Patched? Yes
Remediation Update to version 3.21.1, or a newer patched version
Affected Version
  • <= 3.21.0
Patched Version
  • 3.21.1

Recent vulnerabilities in Happy Addons for Elementor

# Title CVE ID CVSS Researchers Date
1 Happy Addons for Elementor <= 3.20.8 - Unauthenticated Information Exposure CVE-2026-25468 5.3 shrikant bhosale May 7, 2026
2 Happy Addons for Elementor <= 3.21.0 - Insecure Direct Object Reference to Authenticated (Contributor+) Stored Cross-Site Scripting via Template Conditions CVE-2026-2918 6.4 Dmitrii Ignatyev March 10, 2026
3 Happy Addons for Elementor <= 3.20.7 - Authenticated (Contributor+) Stored Cross-Site Scripting via '_elementor_data' Meta Field CVE-2026-1210 6.4 iwd - Prysm Sec February 2, 2026
4 Happy Addons for Elementor <= 3.20.4 - Authenticated (Contributor+) SQL Injection CVE-2025-68999 6.5 iwd - Prysm Sec January 23, 2026
5 Happy Addons for Elementor <= 3.20.3 - Authenticated (Contributor+) Stored Cross-Site Scripting via Custom JS CVE-2025-14635 6.4 zer0gh0st December 22, 2025
6 Happy Addons for Elementor <= 3.20.3 - Missing Authorization CVE-2025-63077 4.3 Mdr December 4, 2025
7 Multiple Plugins <= (Various Versions) - Authenticated (Contributor+) Stored DOM-Based Cross-Site Scripting via Magnific Popups JavaScript Library CVE-2024-5647 6.4 Webbernaut July 2, 2025
8 Happy Addons for Elementor <= 3.16.2 - Authenticated (Contributor+) Stored Cross-Site Scripting CVE-2025-30766 6.4 stealthcopter March 27, 2025
9 Happy Addons for Elementor <= 3.15.1 - Authenticated (Contributor+) Stored Cross-Site Scripting CVE-2024-12852 6.4 zer0gh0st January 7, 2025
10 Happy Addons for Elementor <= 3.12.5 - Authenticated (Contributor+) Stored Cross-Site Scripting via Image Comparison CVE-2024-10538 6.4 zer0gh0st November 11, 2024

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