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CVE-2026-87760

HIGH 8.8 CVSS 3.1
Published
October 11, 2026
Last modified
October 13, 2026
NVD status
Deferred
Reported by
contact@wpscan.com
Weakness
CWE-79
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

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 WordPress components

A confirmed match is backed by the plugin or theme slug. A possible match is based on the product name only and should be verified.

Affected products and versions

  • Unknown Web Vitals Tracking — Up to and including 5.4.2

References

  • wpscan.com https://wpscan.com/vulnerability/c6250c43-42c5-4c76-9eb9-2b35ba461e8c/
  • nvd.nist.gov Official NVD record