CVE-2026-87760

UNKNOWN 0.0

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

CVSS Score

0.0

EPSS Score

0.0%

EPSS Percentile

0th

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.

Vendor	unknown
Product	web vitals tracking
Published	Oct 11, 2026

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Affected Versions

Unknown / Web Vitals Tracking

0 ≤ 5.4.2

References

NVD ↗ CVE.org ↗ EPSS Data ↗

wpscan.com: https://wpscan.com/vulnerability/c6250c43-42c5-4c76-9eb9-2b35ba461e8c/

Credits

Pablo González Pérez Francisco José Ramírez Vicente and Iñigo Sánchez Enciso WPScan