What is CVE-2017-18197?

CVE-2017-18197 is a critical-severity vulnerability in Jgraph Mxgraph, classified under Improper Restriction of XML External Entity Reference (XXE). CVSS score: 9.8/10. Published 2018-02-24.

How severe is CVE-2017-18197?

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

XXE in Jgraph Mxgraph

CVE-2017-18197

In mxGraphViewImageReader.java in mxGraph before 3.7.6, the SAXParserFactory instance in convert() is missing flags to prevent XML External Entity (XXE) attacks, as demonstrated by /ServerView.

Vulnerability class: XXE (XML External Entity)

Published 2018-02-24 · 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: 0.029 (86.4th percentile), scored 2026-09-28.

Low probability of exploitation in the next 30 days, but still tracked. 86th percentile — 86.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.029 · newest: 0.029 · change: 0.000

Affected products

Jgraph Mxgraph

Weakness classification (CWE)

CWE-611 — Improper Restriction of XML External Entity Reference (XXE)

References

github.com/jgraph/mxgraph/issues/124 (Exploit, Third Party Advisory)
lists.debian.org/debian-lts-announce/2018/03/msg00002.html (mailing-list, Third Party Advisory)

Frequently asked questions

What is CVE-2017-18197?: CVE-2017-18197 is a critical-severity vulnerability in Jgraph Mxgraph, classified under Improper Restriction of XML External Entity Reference (XXE). CVSS score: 9.8/10. Published 2018-02-24.
How severe is CVE-2017-18197?: Critical severity. CVSS v3 base score is 9.8 out of 10.