CVE-2020-13973: owasp json-sanitizer Cross-site Scripting

Vulnerability summary

CVE-2020-13973 is a medium (CVSS 6.1) Cross-site Scripting vulnerability in owasp json-sanitizer. EPSS estimates a 1.11% chance of exploitation in the next 30 days, higher than 65.4% of scored vulnerabilities. 1 public exploit is recorded.

Timeline

1. 09-06-2020
   PublishedVulnerability first disclosed.
2. 04-08-2024
   Last modifiedVulnerability information updated.

Description

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.

• CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users.