CVE-2026-66706
Received Received - Intake

Author XSS in Subscribe to Comments Plugin

Publication date: 2026-08-06

Last updated on: 2026-08-06

Assigner: Patchstack

Description
Author Cross Site Scripting (XSS) in Subscribe to Comments <= 2.3.1 versions.

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Meta Information

Published
2026-08-06
Last Modified
2026-08-06
Generated
2026-08-06
AI Q&A
2026-08-06
EPSS Evaluated
N/A
NVD
CVE-2026-66706
EUVD
EUVD-2026-53909

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
patchstack subscribe_to_comments to 2.3.1 (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 is an Author Cross Site Scripting (XSS) vulnerability found in the Subscribe to Comments plugin versions 2.3.1 and below. XSS allows attackers to inject malicious scripts into web pages viewed by other users.

Detection Guidance

This vulnerability requires manual inspection of the WordPress Subscribe to Comments plugin code or behavior. Check for suspicious script injections in user input fields or output rendering. Review plugin files for unsanitized user data handling. No specific commands are provided in the context.

Impact Analysis

An attacker could exploit this to steal user session cookies, redirect users to malicious sites, or deface web pages. It requires user interaction like clicking a link but can affect site visitors if exploited.

Compliance Impact

This XSS vulnerability could lead to unauthorized data access or modification, potentially violating GDPR (data protection) or HIPAA (health data privacy) by exposing user data or session information.

Mitigation Strategies

Update the Subscribe to Comments plugin to the latest version to patch the XSS vulnerability. If an update is unavailable, consider disabling or removing the plugin immediately.

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