What is CVE-2020-11983?

CVE-2020-11983 is a medium-severity vulnerability in Apache Airflow, classified under Cross-site Scripting. CVSS score: 5.4/10. Published 2020-07-17.

How severe is CVE-2020-11983?

Medium severity. CVSS v3 base score is 5.4 out of 10.

XSS in Apache Airflow

CVE-2020-11983

An issue was found in Apache Airflow versions 1.10.10 and below. It was discovered that many of the admin management screens in the new/RBAC UI handled escaping incorrectly, allowing authenticated users with appropriate permissions to create stored XSS attacks.

Vulnerability class: XSS (Cross-Site Scripting)

Published 2020-07-17 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 5.4 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N.

EPSS exploit prediction

EPSS: 0.018 (77.3th percentile), scored 2026-10-03.

Low probability of exploitation in the next 30 days, but still tracked. 77th percentile — 77.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.018 · newest: 0.018 · change: 0.000

Affected products

Apache Airflow
Apache Software Foundation Airflow — versions 1.10.10 and below

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

lists.apache.org/thread.html/r7255cf0be3566f23a768e2a04b40fb09e52fcd1872695428b… (Mailing List, Vendor Advisory)

Frequently asked questions

What is CVE-2020-11983?: CVE-2020-11983 is a medium-severity vulnerability in Apache Airflow, classified under Cross-site Scripting. CVSS score: 5.4/10. Published 2020-07-17.
How severe is CVE-2020-11983?: Medium severity. CVSS v3 base score is 5.4 out of 10.