Smart Forms <= 2.6.104 - Unauthenticated Stored Cross-Site Scripting via 'formString' Parameter

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2026-95816
StatePUBLISHED
AssignerWordfence
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-10-14 04:18:56 UTC
Updated2026-10-15 17:17:32 UTC
DescriptionThe 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.

Risk And Classification

Primary CVSS: v3.1 7.2 HIGH from [email protected]

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N

Problem Types: CWE-79 | CWE-79 CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

VersionSourceTypeScoreSeverityVector
3.1[email protected]Secondary7.2HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N
3.1CNADECLARED7.2HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N

CVSS v3.1 Breakdown

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Changed
Confidentiality
Low
Integrity
Low
Availability
None

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Edgarrojas Smart Forms When You Need More Than Just A Contact Form affected 2.6.104 semver Not specified

References

ReferenceSourceLinkTags
plugins.trac.wordpress.org/browser/smart-forms/trunk/smart-forms-ajax.php [email protected] plugins.trac.wordpress.org
plugins.trac.wordpress.org/browser/smart-forms/trunk/js/dist/Entries_bundle.js [email protected] plugins.trac.wordpress.org
plugins.trac.wordpress.org/browser/smart-forms/trunk/js/dist/Entries_bundle.js [email protected] plugins.trac.wordpress.org
plugins.trac.wordpress.org/browser/smart-forms/trunk/js/dist/Entries_bundle.js [email protected] plugins.trac.wordpress.org
plugins.trac.wordpress.org/browser/smart-forms/trunk/smartforms.php [email protected] plugins.trac.wordpress.org
www.wordfence.com/threat-intel/vulnerabilities/id/ace194b6-c794-417c-9870-db8eb... [email protected] www.wordfence.com
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Vendor Comments And Credit

Discovery Credit

CNA: thevietronin (en)

Additional Advisory Data

SourceTimeEvent
CNA2026-10-13T15:36:54.000ZDisclosed

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