CVE-2026-66663
Received Received - Intake

Unauthenticated XSS in WP Data Access Plugin

Publication date: 2026-08-06

Last updated on: 2026-08-06

Assigner: Patchstack

Description
Unauthenticated Cross Site Scripting (XSS) in WP Data Access <= 5.5.79 versions.

CVSS Scores

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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-2026-66663
EUVD
EUVD-2026-53889

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
wp_data_access wp_data_access to 5.5.79 (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.

Attack-Flow Graph

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Executive Summary

This is an Unauthenticated Cross Site Scripting (XSS) vulnerability in the WP Data Access plugin for WordPress versions 5.5.79 and below. It allows attackers to inject malicious scripts into websites without authentication by tricking users into clicking a malicious link or visiting a crafted page.

Detection Guidance

To detect this XSS vulnerability in WP Data Access <= 5.5.79, check the plugin version in your WordPress admin panel under Plugins. If the version is 5.5.79 or lower, the system is vulnerable. You can also scan for malicious scripts in web pages served by the plugin by inspecting page source for unexpected JavaScript or using security tools like Wordfence or Patchstack.

Impact Analysis

Attackers could inject malicious scripts to perform actions like redirects or display unwanted advertisements. Successful exploitation requires user interaction but could affect thousands of websites due to its unauthenticated nature and moderate CVSS score of 7.1.

Mitigation Strategies

Immediately update the WP Data Access plugin to version 5.5.80 or later via the WordPress admin panel. If an update is not available, disable the plugin temporarily until a patch is released. Apply Patchstack's mitigation rule if available to block attacks until the update is installed.

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