CVE-2026-84816
Deferred Deferred - Pending Action

Unauthenticated XSS in WPCS Plugin

Publication date: 2026-09-10

Last updated on: 2026-09-10

Assigner: Patchstack

Description
Unauthenticated Cross Site Scripting (XSS) in WPCS <= 1.3.2 versions.

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Meta Information

Published
2026-09-10
Last Modified
2026-09-10
Generated
2026-09-10
AI Q&A
2026-09-10
EPSS Evaluated
N/A
NVD
CVE-2026-84816
EUVD
EUVD-2026-75534

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
wpcs wpcs 1.3.2

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 Unauthenticated Cross Site Scripting (XSS) vulnerability affecting WPCS versions 1.3.2 and below. It allows attackers to inject malicious scripts into web pages viewed by other users without needing authentication.

Detection Guidance

Since this is an unauthenticated XSS vulnerability in WPCS <= 1.3.2, detection involves checking for vulnerable versions and testing for XSS payload execution. Inspect your WordPress plugins for WPCS versions 1.3.2 or lower. Use tools like WPScan to scan for vulnerable plugins. Test for XSS by injecting basic payloads in input fields and checking for script execution.

Impact Analysis

An attacker could steal user sessions, deface websites, or redirect users to malicious sites. Since no authentication is required, any user visiting a vulnerable site could be affected.

Compliance Impact

This XSS vulnerability could lead to data breaches, violating GDPR's integrity and confidentiality requirements. For HIPAA, it may expose protected health information, risking non-compliance with security rules.

Mitigation Strategies

Update WPCS to the latest version (greater than 1.3.2) to patch the XSS vulnerability. If an update is not available, consider disabling or removing the plugin until a fix is released.

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