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OpenAdvisories
High · 8.8 CVE-2026-87760 EUVD-2026-96769GHSA-pwvc-4967-h5ch

Web Vitals Tracking <= 5.4.2 - Unauthenticated Stored XSS via Tracking Beacon Metric Name

Published Oct 11, 2026 · Updated Oct 11, 2026 · Assigned by WPScan

Description

The Web Vitals Tracking WordPress plugin through 5.4.2 does not validate or escape performance measurements submitted by unauthenticated visitors before storing them and outputting them in a script context on an administrative page, allowing unauthenticated attackers to perform Stored Cross-Site Scripting attacks against administrators.

Affected products

VendorProductAffectedFixed
— Web Vitals Tracking ≤ 5.4.2 —

References