Authorization bypass in thehappymonster Happy Addons for Elementor
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Security bypass
- Confidentiality · integrity · availability
- Low · Low · None
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-639.
Summary
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_condition_update` AJAX action. This is due to the `validate_reqeust()` method using `current_user_can('edit_posts', $template_id)` instead of `current_user_can('edit_post', $template_id)` — failing to perform object-level authorization. Additionally, the `ha_get_current_condition` AJAX action lacks a capability check. This makes it possible for authenticated attackers, with Contributor-level access and above, to modify the display conditions of any published `ha_library` template. Because the `cond_to_html()` renderer outputs condition values into HTML attributes without proper escaping (using string concatenation instead of `esc_attr()`), an attacker can inject event handler attributes (e.g., `onmouseover`) that execute JavaScript when an administrator views the Template Conditions panel, resulting in Stored Cross-Site Scripting.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| thehappymonster | Happy Addons for Elementor | up to 3.21.0 | — | No fix listed | CNA |
- Happy Addons for Elementor Vendorthehappymonster Affected up to 3.21.0 Fixed in — No fix listed CNA
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2026-2918
- 2026-10-03 Alias added: GHSA-9vxv-jfqw-372j
References
Other 6
- https://www.wordfence.com/threat-intel/vulnerabilities/id/1a3fe49b-cc0d-4b29-aae5-46307483b8d4?source=cve
- https://plugins.trac.wordpress.org/browser/happy-elementor-addons/tags/3.20.7/classes/condition-manager.php#L237
- https://plugins.trac.wordpress.org/browser/happy-elementor-addons/tags/3.20.7/classes/condition-manager.php#L525
- https://plugins.trac.wordpress.org/browser/happy-elementor-addons/trunk/classes/condition-manager.php#L237
- https://plugins.trac.wordpress.org/browser/happy-elementor-addons/trunk/classes/condition-manager.php#L525
- https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&new=3475242%40happy-elementor-addons%2Ftrunk&old=3463375%40happy-elementor-addons%2Ftrunk&sfp_email=&sfph_mail=
More thehappymonster vulnerabilities
- TI-2024-32247 WordPress Happy Elementor Addons plugin <= 3.12.3 - Broken Access Control vulnerability CVSS 3.1HIGH 8.8
- TI-2024-16350 WordPress Happy Addons for Elementor plugin <= 3.10.1 - Broken Access Control on Post Clone vulnerability CVSS 3.1HIGH 8.8
- TI-2025-42455 WordPress Happy Addons for Elementor plugin <= 3.20.4 - SQL Injection vulnerability CVSS 3.1HIGH 8.5
- TI-2024-02598 Happy Addons for Elementor <= 3.10.4 - Authenticated (Contributor+) Stored Cross-Site Scripting via Page Title HTML Tag CVSS 3.1MEDIUM 6.4
- TI-2025-22036 WordPress Happy Addons for Elementor plugin <= 3.16.2 - Cross Site Scripting (XSS) Vulnerability CVSS 3.1MEDIUM 6.5
- TI-2024-21578 WordPress Happy Addons for Elementor plugin <= 3.10.4 - Cross Site Scripting (XSS) vulnerability CVSS 3.1MEDIUM 6.5
Sources
- CVE-2026-2918 · CVE Program
- CVE-2026-2918 · NVD
- FIRST EPSS
- GHSA-9vxv-jfqw-372j · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences