What is CVE-2023-3974?

CVE-2023-3974 is a critical-severity vulnerability in Diagrams Drawio, classified under OS Command Injection. CVSS score: 9.8/10. Published 2023-07-27.

How severe is CVE-2023-3974?

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

RCE in Diagrams Drawio

CVE-2023-3974

OS Command Injection in GitHub repository jgraph/drawio prior to 21.4.0.

Vulnerability class: Command Injection (OS Command Injection)

Published 2023-07-27 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.012 (67.9th percentile), scored 2026-09-23.

Low probability of exploitation in the next 30 days, but still tracked. 68th percentile — 67.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.012 · newest: 0.012 · change: 0.000

Affected products

Diagrams Drawio
Jgraph Jgraph/drawio — versions unspecified

Weakness classification (CWE)

CWE-78 — OS Command Injection

References

huntr.dev/bounties/ce75aa04-e4d6-4e0a-9db0-ae84c46ae9e2 (Permissions Required)
github.com/jgraph/drawio/commit/9d6532de36496e77d872d91b1947bb696607d623 (Patch)

Frequently asked questions

What is CVE-2023-3974?: CVE-2023-3974 is a critical-severity vulnerability in Diagrams Drawio, classified under OS Command Injection. CVSS score: 9.8/10. Published 2023-07-27.
How severe is CVE-2023-3974?: Critical severity. CVSS v3 base score is 9.8 out of 10.