XSS in Apache Superset
CVE-2021-27907
Apache Superset up to and including 0.38.0 allowed the creation of a Markdown component on a Dashboard page for describing chart's related information. Abusing this functionality, a malicious user could inject javascript code executing unwanted action in the context of the user's browser. The javascript code will be automatically executed (Stored XSS) when a legitimate user surfs on the dashboard page. The vulnerability is exploitable creating a “div” section and embedding in it a “svg” element with javascript code.
Vulnerability class: XSS (Cross-Site Scripting)
EPSS: 0.864 (99.7th percentile) — read the EPSS interpretation.
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.
Affected products
- Apache Superset
- Apache Software Foundation Superset — versions Apache Superset
Weakness classification (CWE)
References
- security@apache.org (Mailing List, x_refsource_MISC, Vendor Advisory)
Frequently asked questions
- What is CVE-2021-27907?
- CVE-2021-27907 is a medium-severity vulnerability in Apache Superset, classified under Cross-site Scripting. CVSS score: 5.4/10. Published 2021-03-05.
- How severe is CVE-2021-27907?
- Medium severity. CVSS v3 base score is 5.4 out of 10.