[ CVE-2026-87760 · Published 11 Oct 2026 ]
Vulnerability in Unknown Web Vitals Tracking
CVSS 8.8
EPSS <1%No fix listed yet
[ Description ]Official 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.
[ Fixes ]Fixes and patches
No fix or interim patch is linked from our sources yet. Check the vendor references below and limit exposure of affected systems until a fix is available.