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.

• CWE-79
• CWE-79

• https://lists.apache.org/thread.html/r09293fb09f1d617f0d2180c42210e739e2211f8da9bc5c1873bea67a%40%3Cdev.superset.apache.org%3EMailing List, Vendor Advisory
• https://lists.apache.org/thread.html/r09293fb09f1d617f0d2180c42210e739e2211f8da9bc5c1873bea67a%40%3Cdev.superset.apache.org%3EMailing List, Vendor Advisory
• https://lists.apache.org/thread.html/r09293fb09f1d617f0d2180c42210e739e2211f8da9bc5c1873bea67a%40%3Cdev.superset.apache.org%3EMailing List, Vendor Advisory
• https://lists.apache.org/thread.html/r09293fb09f1d617f0d2180c42210e739e2211f8da9bc5c1873bea67a%40%3Cdev.superset.apache.org%3EMailing List, Vendor Advisory
• https://lists.apache.org/thread.html/r09293fb09f1d617f0d2180c42210e739e2211f8da9bc5c1873bea67a%40%3Cdev.superset.apache.org%3EMailing List, Vendor Advisory
• https://lists.apache.org/thread.html/r09293fb09f1d617f0d2180c42210e739e2211f8da9bc5c1873bea67a%40%3Cdev.superset.apache.org%3EMailing List, Vendor Advisory
• https://lists.apache.org/thread.html/r09293fb09f1d617f0d2180c42210e739e2211f8da9bc5c1873bea67a%40%3Cdev.superset.apache.org%3EMailing List, Vendor Advisory
• https://lists.apache.org/thread.html/r09293fb09f1d617f0d2180c42210e739e2211f8da9bc5c1873bea67a%40%3Cdev.superset.apache.org%3EMailing List, Vendor Advisory

Published

Mar 5, 2021

Last Modified

Jun 17, 2026

Status

Modified

• How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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