PatchSiren cyber security CVE debrief
CVE-2026-9281 litonice13 CVE debrief
The Master Addons For Elementor – Widgets, Extensions, Theme Builder, Popup Builder & Template Kits plugin for WordPress is vulnerable to Stored Cross-Site Scripting via 'jtlma_custom_js' Page Setting (Custom JS Extension) in all versions up to, and including, 3.1.0 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with author-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.
- Vendor
- litonice13
- Product
- Master Addons For Elementor – Widgets, Extensions, Theme Builder, Popup Builder & Template Kits
- CVSS
- MEDIUM 6.4
- CISA KEV
- Not listed in stored evidence
- Original CVE published
- 2026-06-06
- Original CVE updated
- 2026-06-08
- Advisory published
- 2026-06-06
- Advisory updated
- 2026-06-08
Who should care
Users of the Master Addons For Elementor plugin for WordPress, particularly those with author-level access and above, should be aware of this vulnerability and take steps to mitigate it.
Technical summary
The vulnerability exists in the 'jtlma_custom_js' Page Setting (Custom JS Extension) of the Master Addons For Elementor plugin. The unfiltered_html capability check is only enforced during Elementor control registration (UI rendering) and not during the save process, enabling Author-level users to inject the jtlma_custom_js setting directly via a crafted POST request to admin-ajax.php?action=elementor_ajax, bypassing the UI-level restriction entirely.
Defensive priority
MEDIUM
Recommended defensive actions
- Update the Master Addons For Elementor plugin to a version beyond 3.1.0.
- Restrict access to the admin-ajax.php file to prevent unauthorized requests.
- Monitor for suspicious activity, particularly injected scripts.
Evidence notes
The CVE-2026-9281 record and associated details can be found at [cve-org](https://www.cve.org/CVERecord?id=CVE-2026-9281). Additional information and references are available at [nvd](https://nvd.nist.gov/vuln/detail/CVE-2026-9281).
Official resources
CVE-2026-9281 was published on [cvePublishedAt] and modified on [cveModifiedAt].