CVE-2026-87970
Deferred Deferred - Pending Action

If-So Dynamic Content Plugin Reflected XSS Vulnerability

Publication date: 2026-10-01

Last updated on: 2026-10-01

Assigner: WPScan

Description
The If-So Dynamic Content WordPress plugin before 1.10.2 does not escape a request-supplied value before reflecting it in an unauthenticated AJAX response that is served as HTML, allowing attackers to execute arbitrary JavaScript in the browser of a visitor who opens a crafted link.

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Meta Information

Published
2026-10-01
Last Modified
2026-10-01
Generated
2026-10-19
AI Q&A
2026-10-01
EPSS Evaluated
2026-10-18
NVD
CVE-2026-87970
EUVD
EUVD-2026-90512

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
if-so dynamic_content to 1.10.1 (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 vulnerability is a reflected Cross-Site Scripting (XSS) flaw in the If-So Dynamic Content WordPress plugin versions 1.8 to 1.10.1. It occurs because the plugin fails to properly escape user input before reflecting it in an unauthenticated AJAX response served as HTML. Attackers can exploit this by tricking a user into clicking a crafted link, which executes arbitrary JavaScript in their browser.

Detection Guidance

Check the installed version of the If-So Dynamic Content plugin. If it is between 1.8 and 1.10.1, the system is vulnerable. Use WordPress admin panel or run a command like 'wp plugin list' if using WP-CLI to verify the version.

Impact Analysis

This vulnerability allows attackers to execute malicious JavaScript in your browser when you click a specially crafted link. This could lead to theft of cookies, session tokens, or sensitive data, unauthorized actions on your behalf, or redirection to phishing sites. Users of vulnerable plugin versions are at risk if they interact with such links.

Compliance Impact

This XSS vulnerability could lead to unauthorized access to user data, violating GDPR's data protection principles and HIPAA's security requirements for protected health information. Organizations using the vulnerable plugin may face compliance breaches if user data is compromised through this flaw.

Mitigation Strategies

Update the If-So Dynamic Content plugin to version 1.10.2 or later immediately. If updating is not possible, consider disabling the plugin temporarily until an update is applied.

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