Cross-site scripting in json-sanitizer
Date: 2022-02
Affected: maven/com.mikesamuel:json-sanitizer
Attack vector: xss
Category: vulnerability-disclosure
Severity: Medium
CVE: CVE-2020-13973
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)

OWASP json-sanitizer before 1.2.1 allows XSS. An attacker who controls a substring of the input JSON, and controls another substring adjacent to a SCRIPT element in which the output is embedded as JavaScript, may be able to confuse the HTML parser as to where the SCRIPT element ends, and cause non-script content to be interpreted as JavaScript.


Mitigations:

Architectural layers (MAESTRO):