CVE-2026-1901 MEDIUM

CVE-2026-1901: QuestionPro Surveys <= 1.0 - Authenticated (Contributor+) Stored Cross-Site Scripting via Shortcode Attributes

Vendor Questionpro
Product QuestionPro Surveys
Weakness CWE-79 · XSS
Published February 14, 2026
Last update April 8, 2026

CVSS base score

6.4/10
Attack vector Network
Attack complexity Low
Privileges required Low
User interaction None
Confidentiality Low
Integrity Low

CVSS vector

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

What the vulnerability does

01Description

The QuestionPro Surveys plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'questionpro' shortcode in all versions up to, and including, 1.0 due to insufficient input sanitization and output escaping on user supplied attributes. This makes it possible for authenticated attackers, with Contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.

Explanation of Vulnerability in Simple Terms

02Summary

QuestionPro Surveys versions 1.0 and earlier contain a cross-site scripting (XSS) vulnerability that allows authenticated users to inject malicious scripts. The vulnerability has a changed scope, meaning the impact can extend beyond the vulnerable component to affect other users or parts of the application. An attacker with low-level credentials can exploit this without user interaction.

What an attacker can do

03Attacker Capabilities

Inject malicious scripts that execute in other users' browsers and affect other parts of the application.

Potential impact on your site

04Site Impact

Users' sessions and data could be compromised; attackers can steal credentials or modify survey responses.

Conditions required to exploit

05Prerequisites

Attacker must have a low-level user account; no user interaction required.

Key dates

06Disclosure timeline

February 14, 2026 CVE published
April 8, 2026 Record updated

Related vulnerabilities

08Related CVE