WordPress Web Vitals Tracking plugin <= 5.4.2 - Unauthenticated Stored XSS vulnerability

Unauthenticated Stored XSS vulnerability discovered by Pablo González Pérez, Francisco José Ramírez Vicente and Iñigo Sánchez Enciso in WordPress Plugin Web Vitals Tracking versions = 5.4.2...

CVE-2026-87760

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...

CVE-2026-87760 Web Vitals Tracking <= 5.4.2 - Unauthenticated Stored XSS via Tracking Beacon Metric Name

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...

CVE-2026-87760 Web Vitals Tracking <= 5.4.2 - Unauthenticated Stored XSS via Tracking Beacon Metric Name

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...

EUVD-2026-96769

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...

CVE-2026-87760

The Web Vitals Tracking WordPress plugin, in versions through 5.4.2 , is vulnerable to Stored Cross-Site Scripting (XSS) . The root cause is a failure to validate or escape performance measurements submitted by unauthenticated visitors before storing and subsequently outputting them within a scri...

PT-2026-110043

Name of the Vulnerable Software and Affected Versions Web Vitals Tracking WordPress plugin versions prior to 5.4.3 Description Unauthenticated visitors can submit performance measurements that are stored and subsequently output within a script context on an administrative page without proper...

CVE-2026-87760: Improper Neutralization of Input During Web Page Generation

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...