Apache Druid before 0.23.0 vulnerable to reflected XSS via unescaped URL parameters
Date: 2022-07
Affected: maven/org.apache.druid:druid
Attack vector: xss
Category: vulnerability-disclosure
Severity: Medium
CVE: CVE-2021-44791
CWE: CWE-79
CVSS: 6.1 (CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N)

In Apache Druid 0.22.1 and earlier, certain specially-crafted links result in unescaped URL parameters being sent back in HTML responses. This makes it possible to execute reflected XSS attacks. This issue is patched in version 0.23.0.


Mitigations:

Architectural layers (MAESTRO):