OCTOBER 10, 2026
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Case File

CVE-2026-15664

HIGH · CVSS 7.2 EPSS 0.39%

Source: NVD + CISA KEV + EPSS · Published 2026-09-19 · Last synced 2026-10-10

CyberRota Analysis

AI-Generated

The Quill Forms plugin for WordPress is susceptible to Stored Cross-Site Scripting due to inadequate input sanitization and output escaping in the Multiple Choice 'Other' value feature, affecting all versions up to 5.7.1. This vulnerability allows unauthenticated attackers to inject malicious scripts that execute in the context of the WordPress admin results view, posing a significant risk to administrators reviewing form submissions. WordPress site administrators using this plugin should prioritize immediate updates to mitigate potential exploitation.

CVE
CVE-2026-15664
Severity
HIGH
CVSS
7.2
EPSS
0.39%
WordPress

Original NVD Description

The Quill Forms | Conversational Multi Step Forms, Surveys & quizzes plugin for WordPress is vulnerable to Stored Cross-Site Scripting via Multiple Choice 'Other' Value in all versions up to, and including, 5.7.1 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 injected script executes in the context of the WordPress admin results view, making administrators the primary target when reviewing submitted form entries.