CVE-2026-95816
highThe Smart Forms – when you need more than just a contact form plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'formString' parameter…
The Smart Forms – when you need more than just a contact form plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'formString' parameter in all versions up to, and including, 2.6.104 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. The nonce check protecting the rednao_smart_forms_save_form_values AJAX handler is only enforced when the smart_forms_block_anonymous_submissions option is enabled, meaning default installations require no authentication or nonce verification whatsoever to submit and store malicious payloads.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N Affected products
Not reported by the source (unknown — not "none").
Weakness classification (CWE)
Source: NVD / CISA. “NVD-CWE-Other” and “NVD-CWE-noinfo” mean NVD could not assign a specific weakness.
Mitigation & advisories
No vendor advisory or patch reference tagged by NVD. Check the references below.
References
- https://plugins.trac.wordpress.org/browser/smart-forms/trunk/js/dist/Entries_bundle.js#L38... security@wordfence.com
- https://plugins.trac.wordpress.org/browser/smart-forms/trunk/js/dist/Entries_bundle.js#L58... security@wordfence.com
- https://plugins.trac.wordpress.org/browser/smart-forms/trunk/js/dist/Entries_bundle.js#L80... security@wordfence.com
- https://plugins.trac.wordpress.org/browser/smart-forms/trunk/smart-forms-ajax.php#L227 security@wordfence.com
- https://plugins.trac.wordpress.org/browser/smart-forms/trunk/smartforms.php#L63 security@wordfence.com
- https://www.wordfence.com/threat-intel/vulnerabilities/id/ace194b6-c794-417c-9870-db8ebaa4... security@wordfence.com