PT-2026-110043 · WordPress · Web Vitals Tracking
CVE-2026-87760
·
Published
2026-10-11
·
Updated
2026-10-16
CVSS v3.1
8.8
High
| Vector | AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H |
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 validation or escaping. This allows attackers to execute Stored Cross-Site Scripting (XSS) attacks against administrators. Stored Cross-Site Scripting is a flaw where malicious scripts are permanently stored on the target server and served to other users.
Recommendations
Update the plugin to version 5.4.3 or later.
Exploit
Fix
XSS
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Weakness Enumeration
Related Identifiers
Affected Products
Web Vitals Tracking