CVE-2026-66607
Deferred Deferred - Pending Action

Unauthenticated XSS in Advance Product Search

Publication date: 2026-08-20

Last updated on: 2026-08-20

Assigner: Patchstack

Description
Unauthenticated Cross Site Scripting (XSS) in Advance Product Search <= 1.4.8 versions.

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Meta Information

Published
2026-08-20
Last Modified
2026-08-20
Generated
2026-08-20
AI Q&A
2026-08-20
EPSS Evaluated
N/A
NVD
CVE-2026-66607
EUVD
EUVD-2026-63294

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
patchstack advance_product_search to 1.4.8 (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 Unauthenticated Cross Site Scripting (XSS) vulnerability in the Advance Product Search WordPress plugin versions 1.4.8 and below. It allows attackers to inject malicious scripts into websites, which could lead to redirects, advertisements, or other harmful actions when visitors access the site.

Detection Guidance

Check if the Advance Product Search plugin version 1.4.8 or below is installed on your WordPress site. Look for unusual script injections in web pages or user inputs. Monitor for unexpected redirects or advertisements.

Impact Analysis

Attackers could exploit this to inject malicious scripts, potentially causing redirects to harmful sites, displaying unwanted ads, or stealing user data. Visitors to the site may be affected without any authentication required from the attacker.

Compliance Impact

This XSS vulnerability could lead to data breaches or unauthorized access to user data, which may violate GDPR (data protection) and HIPAA (health information privacy) requirements. Organizations must address it to maintain compliance.

Mitigation Strategies

Update the Advance Product Search plugin to version 1.4.9 or later immediately. If updating is not possible, apply Patchstack's mitigation rule to block attacks until the update is applied.

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