PT-2020-13811 · Owasp · Owasp Json-Sanitizer

Fabian Henneke + 1 · Published 2020-06-09 · Updated 2022-02-10 · CVE-2020-13973

Positive Technologies (AI Summary)

CVSS v3.1

6.1

Medium

Base vector

AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Name of the Vulnerable Software and Affected Versions OWASP json-sanitizer versions prior to 1.2.1

Description The issue allows 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, to potentially confuse the HTML parser as to where the SCRIPT element ends. This could cause non-script content to be interpreted as JavaScript, leading to a cross-site scripting (XSS) attack.

Recommendations For OWASP json-sanitizer versions prior to 1.2.1, update to version 1.2.1 or later to resolve the issue.

Exploit

Fix

XSS

Weakness Enumeration

CWE-79

Related Identifiers

CVE-2020-13973

GHSA-G8JJ-899Q-8X3J

Affected Products

Owasp Json-Sanitizer

References · 5

• 🔥 https://github.com/OWASP/json-sanitizer/pull/20 · Exploit
• https://nvd.nist.gov/vuln/detail/CVE-2020-13973 · Security Note
• https://osv.dev/vulnerability/CVE-2020-13973 · Vendor Advisory
• https://osv.dev/vulnerability/GHSA-g8jj-899q-8x3j · Vendor Advisory
• https://t.me/cvenotify/4248 · Telegram Post