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Home - Vulnerability NotesPrint
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CERT-In Vulnerability Note CIVN-2026-0408
Cross-Site Scripting (XSS) Vulnerability in WordPress

Original Issue Date:August 12, 2026

Severity Rating: HIGH

Software Affected

  • WordPress versions prior to 7.0.3

Overview

A Cross-Site Scripting (XSS) vulnerability has been reported in WordPress, which could allow an attacker to execute arbitrary JavaScript on the targeted system.

Target Audience:
All end-user organizations and individuals using WordPress.

Risk Assessment:
High risk of unauthenticated XSS exploitation.

Impact Assessment:
Potential for remote code execution and/or compromise of system.

Description

WordPress is an open-source content management system (CMS) used to create, manage, and publish websites and web applications.

A Cross-Site Scripting (XSS) vulnerability exist in WordPress due to improper handling and sanitization of input on the login screen. An unauthenticated attacker could exploit this vulnerability to execute arbitrary JavaScript on the targeted system.

Successful exploitation of this vulnerability could allow an attacker to execute arbitrary JavaScript and, under specific conditions, potentially execute PHP code, leading to further compromise of the targeted system.

Solution

Apply appropriate updates as mentioned by the vendor:
https://wordpress.org/news/2026/08/wordpress-7-0-3-release/

Vendor Information

WordPress
https://wordpress.org/

References

 
https://wordpress.org/news/2026/08/wordpress-7-0-3-release/

CVE Name
CVE-2026-64638

Disclaimer

The information provided herein is on "as is" basis, without warranty of any kind.

Contact Information

Email: info@cert-in.org.in
Phone: +91-11-22902657

Postal address

Indian Computer Emergency Response Team (CERT-In)
Ministry of Electronics and Information Technology
Government of India
Electronics Niketan
6, CGO Complex, Lodhi Road,
New Delhi - 110 003
India

 
Indian Computer Emergency Response Team - CERT-In, Ministry of Electronics and Information Technology, Government of India.
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