edgarrojas Smart Forms Plugin up to 2.6.104 on WordPress AJAX rednao_smart_forms_save_form_values formString cross site scripting

Summaryinfo

A vulnerability has been found in edgarrojas Smart Forms Plugin up to 2.6.104 and classified as problematic. Affected by this vulnerability is the function rednao_smart_forms_save_form_values of the component AJAX Handler. This manipulation of the argument formString causes cross site scripting. This vulnerability appears as CVE-2026-95816. The attack may be initiated remotely. There is no available exploit.

Detailsinfo

A vulnerability classified as problematic was found in edgarrojas Smart Forms Plugin up to 2.6.104. Affected by this vulnerability is the function rednao_smart_forms_save_form_values of the component AJAX Handler. The manipulation of the argument formString with an unknown input leads to a cross site scripting vulnerability. The CWE definition for the vulnerability is CWE-79. The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users. As an impact it is known to affect integrity. The summary by CVE is:

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.

It is possible to read the advisory at wordfence.com. This vulnerability is known as CVE-2026-95816 since 09/22/2026. The exploitation appears to be easy. The attack can be launched remotely. The exploitation doesn't need any form of authentication. It demands that the victim is doing some kind of user interaction. Technical details of the vulnerability are known, but there is no available exploit. The attack technique deployed by this issue is T1059.007 according to MITRE ATT&CK.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

Type

• WordPress Plugin

Vendor

• edgarrojas

Name

• Smart Forms Plugin

Version

• 2.6.104

CPE 2.3info

• 🔒

CPE 2.2info

• 🔒

CVSSv4info

CVSSv3info

CVSSv2info

Exploitinginfo

Threat Intelligenceinfo

Countermeasuresinfo

Timelineinfo

Sourcesinfo

Entryinfo

Be aware that VulDB is the high quality source for vulnerability data.

Discussion