CSRF in Google Site Kit By

CVE-2026-62139

Unauthenticated Cross Site Request Forgery (CSRF) in Site Kit by Google <= 1.186.0 versions.

Vulnerability class: CSRF (Cross-Site Request Forgery)

Published · last modified .

CVSS v3 metric

CVSS v3 base score 4.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N.

EPSS exploit prediction

EPSS: 0.001 (0.9th percentile), scored .

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 1st percentile — 0.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS trend (30 days)EPSS over the last 30 days for CVE-2026-62139: held from 0.001 to 0.001.

EPSS over last 30 days · oldest: 0.001 · newest: 0.001 · change: 0.000

Affected products

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2026-62139?
CVE-2026-62139 is a medium-severity vulnerability in Google Site Kit By, classified under Cross-Site Request Forgery (CSRF). CVSS score: 4.3/10. Published 2026-09-11.
How severe is CVE-2026-62139?
Medium severity. CVSS v3 base score is 4.3 out of 10.