P4Verified

CVE-2026-87760: Web Vitals Tracking 0 through 5.4.2

CVE-2026-87760. CVSS 3.1 base score 8.8 (HIGH, Source advisory).

Affected technology

Web Vitals Tracking · 0 through 5.4.2
Vendor not specified by the source

Description’s affected range: 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

Component: Not specified by the source

Attack conditions (Source advisory, CVSS 3.1): Network (remote) · No privileges required · User interaction required

What an attacker can do

Unauthenticated attackers can perform Stored Cross-Site Scripting attacks against administrators. Source advisory’s CVSS 3.1 assessment (base score 8.8/10) rates confidentiality, integrity and availability impact as high.

Published 11-Oct-2026 14:33 UTC

CWE: CWE-79
CCR priority: 35.2 /100 (P4)
CVSS 3.1: 8.8 /10 · CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H · Source advisory
KEV: no

Provenance

GitHub Advisory Database · Source record · observed 2026-10-11 14:36:08.397997+00:00 UTC
NVD CVE API 2.0 · Source record · observed 2026-10-11 14:33:42.764061+00:00 UTC

Stable permalink: https://cybercodered.org/item/cve-cve-2026-87760.html