What is CVE-2019-12440?

CVE-2019-12440 is a critical-severity vulnerability in Sitecore Rocks, classified under Improper Authentication. CVSS score: 9.8/10. Published 2019-05-29.

How severe is CVE-2019-12440?

Critical severity. CVSS v3 base score is 9.8 out of 10.

Auth bypass in Sitecore Rocks

CVE-2019-12440

The Sitecore Rocks plugin before 2.1.149 for Sitecore allows an unauthenticated threat actor to inject malicious commands and code via the Sitecore Rocks Hard Rocks Service.

Vulnerability class: Broken Authentication

Published 2019-05-29 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.021 (81.2th percentile), scored 2026-09-29.

Low probability of exploitation in the next 30 days, but still tracked. 81st percentile — 81.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.021 · newest: 0.021 · change: 0.000

Affected products

Sitecore Rocks

Weakness classification (CWE)

CWE-287 — Improper Authentication

References

kb.sitecore.net/articles/842902 (Patch, Vendor Advisory)
github.com/Sitecore/Sitecore.Rocks/releases/tag/2.1.149 (Third Party Advisory, Release Notes)
github.com/Sitecore/Sitecore.Rocks/compare/be79dcc...bd9ba6a (Patch, Third Party Advisory)

Frequently asked questions

What is CVE-2019-12440?: CVE-2019-12440 is a critical-severity vulnerability in Sitecore Rocks, classified under Improper Authentication. CVSS score: 9.8/10. Published 2019-05-29.
How severe is CVE-2019-12440?: Critical severity. CVSS v3 base score is 9.8 out of 10.