CVE-2026-56047

WordPress perfmatters plugin <= 2.6.3 - Reflected Cross Site Scripting (XSS) vulnerability

Published Jun 26, 2026 CVSS 3.1 · 7.1 High EPSS < 1% KEV · Not listed
Description
Unauthenticated Cross Site Scripting (XSS) in perfmatters <= 2.6.3 versions.

Remediation

Vendor Solution

Update the WordPress Perfmatters Plugin to the latest available version (at least 2.6.4).

Tracking

Sign in to view the affected projects.

Advisories

No advisories available
History
Type Values Removed Values Added
First Time appeared Perfmatters, Powered Kinsta + Generatepress Docs Changelog Feature Requests Legal Affiliate Contact
Perfmatters, Powered Kinsta + Generatepress Docs Changelog Feature Requests Legal Affiliate Contact perfmatters
Wordpress
Wordpress wordpress
Vendors & Products Perfmatters, Powered Kinsta + Generatepress Docs Changelog Feature Requests Legal Affiliate Contact
Perfmatters, Powered Kinsta + Generatepress Docs Changelog Feature Requests Legal Affiliate Contact perfmatters
Wordpress
Wordpress wordpress
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
Description Unauthenticated Cross Site Scripting (XSS) in perfmatters <= 2.6.3 versions.
Title WordPress perfmatters plugin <= 2.6.3 - Reflected Cross Site Scripting (XSS) vulnerability
Weaknesses CWE-79
References
Metrics cvssV3_1

{'score': 7.1, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:L'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
Patchstack
Published
Updated
Jun 26, 2026, 3:47 PM
Reserved
Jun 18, 2026, 2:37 PM
Status
Deferred
Published
Jun 26, 2026, 3:16 PM
Modified
Oct 25, 2026, 6:10 PM