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

CVE-2026-87760

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

Description (CNA)

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 (CNA)

Vendor / product	Versions
Unknown / Web Vitals Tracking	affected 0 through 5.4.2

CWE

No CWE identifiers supplied.

References

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

ADP enrichment

CISA-ADP

No English description supplied.

No references supplied.