What is CVE-2020-2120?

CVE-2020-2120 is a high-severity vulnerability in Jenkins Fitnesse, classified under Improper Restriction of XML External Entity Reference (XXE). CVSS score: 8.8/10. Published 2020-02-12.

How severe is CVE-2020-2120?

High severity. CVSS v3 base score is 8.8 out of 10.

XXE in Jenkins Fitnesse

CVE-2020-2120

Jenkins FitNesse Plugin 1.30 and earlier does not configure the XML parser to prevent XML external entity (XXE) attacks.

Vulnerability class: XXE (XML External Entity)

Published 2020-02-12 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.011 (65.6th percentile), scored 2026-09-29.

Low probability of exploitation in the next 30 days, but still tracked. 66th percentile — 65.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.011 · newest: 0.011 · change: 0.000

Affected products

Jenkins Fitnesse
Jenkins Project Fitnesse Plugin — versions unspecified

Weakness classification (CWE)

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

References

jenkins.io/security/advisory/2020-02-12/ (Vendor Advisory)
www.openwall.com/lists/oss-security/2020/02/12/3 (mailing-list, Mailing List, Third Party Advisory)

Frequently asked questions

What is CVE-2020-2120?: CVE-2020-2120 is a high-severity vulnerability in Jenkins Fitnesse, classified under Improper Restriction of XML External Entity Reference (XXE). CVSS score: 8.8/10. Published 2020-02-12.
How severe is CVE-2020-2120?: High severity. CVSS v3 base score is 8.8 out of 10.