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Threat Entry
Updated 2026-09-21
Quill Forms - Security Vulnerability (CVE-2026-15664)
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.
PLUGIN
Quill Forms
CVE-2026-15664
Risk Score
Threat Entry
Updated 2026-10-22
Quill Forms - Cross-Site Scripting (XSS) (CVE-2026-28568)
Unauthenticated Cross Site Scripting (XSS) in Quill Forms
PLUGIN
Quill Forms
CVE-2026-28568
Risk Score
Threat Entry
Updated 2026-10-22
Quill Forms - Cross-Site Scripting (XSS) (CVE-2026-75091)
The Quill Forms | Conversational Multi Step Forms, Surveys & quizzes plugin for WordPress is vulnerable to Stored Cross-Site Scripting 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.
PLUGIN
Quill Forms
CVE-2026-75091
Risk Score
Threat Entry
Updated 2026-06-17
Quill Forms - Cross-Site Scripting (XSS) (CVE-2024-11826)
The Quill Forms | The Best Typeform Alternative | Create Conversational Multi Step Form, Survey, Quiz, Cost Estimation or Donation Form on WordPress plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the plugin's 'quillforms-popup' shortcode in all versions up to, and including, 3.10.0 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.
PLUGIN
Quill Forms
CVE-2024-11826
Risk Score