CVE-2026-66439 HIGH

CVE-2026-66439: WordPress Advanced AJAX Product Filters plugin <= 3.2.0.3 - Cross Site Scripting (XSS) vulnerability

Vendor Berocket

Product Advanced AJAX Product Filters

Weakness CWE-79 · XSS

Published August 6, 2026

Last update August 6, 2026

View on NVD All CVEs

CVSS base score

7.1/10

Attack vector Network

Attack complexity Low

Privileges required None

User interaction Required

Confidentiality Low

Integrity Low

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:L

What the vulnerability does

01Description

Unauthenticated Cross Site Scripting (XSS) in Advanced AJAX Product Filters <= 3.2.0.3 versions.

Explanation of Vulnerability in Simple Terms

02Summary

Advanced AJAX Product Filters versions up to 3.2.0.3 contain a cross-site scripting (XSS) vulnerability. An attacker can inject malicious scripts that execute in visitors' browsers when they interact with product filters. The vulnerability requires user interaction and can affect multiple users across the site. Update to a version newer than 3.2.0.3 to resolve this issue.

What an attacker can do

03Attacker Capabilities

Inject malicious scripts that run in visitors' browsers when they use product filters.

Potential impact on your site

04Site Impact

Visitors' sessions, credentials, or personal data could be compromised when using product filters.

Conditions required to exploit

05Prerequisites

Visitor must interact with a product filter on the affected site; no authentication required.

Key dates

06Disclosure timeline

August 6, 2026 CVE published

August 6, 2026 Record updated

External resources

07References

NVD — National Vulnerability Database https://nvd.nist.gov/vuln/detail/CVE-2026-66439 CWE — Common Weakness Enumeration https://cwe.mitre.org/data/definitions/79.html AskarLabs — CWE-79 write-up Cross-Site Scripting

Related vulnerabilities

Identifiers

CVE CVE-2026-66439

CWE CWE-79

CVSS 7.1 / HIGH

Affected versions