What is CVE-2020-2305?

CVE-2020-2305 is a medium-severity vulnerability in Jenkins Mercurial. CVSS score: 6.5/10. Published 2020-11-04.

How severe is CVE-2020-2305?

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

Vulnerability in Jenkins Mercurial

CVE-2020-2305

Jenkins Mercurial Plugin 2.11 and earlier does not configure its XML parser to prevent XML external entity (XXE) attacks.

Published 2020-11-04 · 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:H/I:N/A:N.

EPSS exploit prediction

EPSS: 0.015 (72.6th percentile), scored 2026-09-30.

Low probability of exploitation in the next 30 days, but still tracked. 73rd percentile — 72.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.015 · newest: 0.015 · change: 0.000

Affected products

Jenkins Mercurial
Jenkins Project Mercurial Plugin — versions unspecified, 2.10.1, 2.9.1

References

www.jenkins.io/security/advisory/2020-11-04/ (Vendor Advisory)

Frequently asked questions

What is CVE-2020-2305?: CVE-2020-2305 is a medium-severity vulnerability in Jenkins Mercurial. CVSS score: 6.5/10. Published 2020-11-04.
How severe is CVE-2020-2305?: Medium severity. CVSS v3 base score is 6.5 out of 10.