CVE-2026-87760

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.

CVSS 3.1

8.8CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

EPSS

0.3% chance of exploitation in the next 30 days; higher than 27% of CVEs (scores of 2026-10-25)

CWE

CWE-79

Published

2026-10-11

Modified

2026-10-13

Record from

the NVD, synced 2026-10-19

References

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

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