CVE-2026-66643
Received Received - Intake

Contributor XSS in Wufoo Shortcode Plugin

Publication date: 2026-08-18

Last updated on: 2026-08-18

Assigner: Patchstack

Description
Contributor Cross Site Scripting (XSS) in Wufoo Shortcode <= 1.55 versions.

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Meta Information

Published
2026-08-18
Last Modified
2026-08-18
Generated
2026-08-18
AI Q&A
2026-08-18
EPSS Evaluated
N/A
NVD
CVE-2026-66643
EUVD
EUVD-2026-60927

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
wufoo shortcode to 1.55 (inc)

Helpful Resources

Exploitability

CWE
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KEV
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CWE ID Description
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.

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Executive Summary

This is a Cross Site Scripting (XSS) vulnerability in the WordPress Wufoo Shortcode Plugin versions 1.55 and below. It allows attackers to inject malicious scripts into websites by tricking a privileged user into clicking a harmful link or visiting a crafted page.

Detection Guidance

Detecting this XSS vulnerability requires checking if the Wufoo Shortcode plugin version 1.55 or below is installed. Inspect WordPress plugin files for suspicious scripts in input fields or page content. No specific commands are provided in the context.

Impact Analysis

The vulnerability can lead to unauthorized script execution in a user's browser, potentially stealing session cookies, redirecting users to malicious sites, or performing actions on behalf of the user. It requires a privileged user to trigger it.

Compliance Impact

XSS vulnerabilities can compromise user data integrity and confidentiality, potentially violating GDPR (data protection) and HIPAA (health data privacy) requirements. Organizations may face compliance risks if user data is exposed due to this flaw.

Mitigation Strategies

Immediately update the Wufoo Shortcode plugin to the latest version if available. If no patch exists, disable the plugin or seek help from your hosting provider or web developer to remove the vulnerable code.

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