What is CVE-2023-37942?

CVE-2023-37942 is a medium-severity vulnerability in Jenkins External Monitor Job Type, classified under Improper Restriction of XML External Entity Reference (XXE). CVSS score: 6.5/10. Published 2023-07-12.

How severe is CVE-2023-37942?

Medium severity. CVSS v3 base score is 6.5 out of 10.

XXE in Jenkins External Monitor Job Type

CVE-2023-37942

Jenkins External Monitor Job Type Plugin 206.v9a_94ff0b_4a_10 and earlier does not configure its XML parser to prevent XML external entity (XXE) attacks.

Vulnerability class: XXE (XML External Entity)

Published 2023-07-12 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N.

EPSS exploit prediction

EPSS: 0.006 (47.5th percentile), scored 2026-10-03.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 47th percentile — 47.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.006 · newest: 0.006 · change: 0.000

Affected products

Jenkins External Monitor Job Type
Jenkins Project External Monitor Job Type Plugin — versions 0

Weakness classification (CWE)

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

References

www.jenkins.io/security/advisory/2023-07-12/ (vendor-advisory, Vendor Advisory)
www.openwall.com/lists/oss-security/2023/07/12/2 (Mailing List, Third Party Advisory)

Frequently asked questions

What is CVE-2023-37942?: CVE-2023-37942 is a medium-severity vulnerability in Jenkins External Monitor Job Type, classified under Improper Restriction of XML External Entity Reference (XXE). CVSS score: 6.5/10. Published 2023-07-12.
How severe is CVE-2023-37942?: Medium severity. CVSS v3 base score is 6.5 out of 10.