PT-2021-15600 · Owasp · Owasp Json-Sanitizer

Mike Samuel · Published 2021-01-13 · Updated 2021-06-16 · CVE-2021-23899

Positive Technologies (AI Summary)

CVSS v3.1

9.8

Critical

Base vector

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

Name of the Vulnerable Software and Affected Versions: OWASP json-sanitizer versions prior to 1.2.2

Description: The issue allows an attacker to inject arbitrary HTML or XML into embedding documents by emitting closing SCRIPT tags and CDATA section delimiters for crafted input.

Recommendations: For versions prior to 1.2.2, update to version 1.2.2 or later to resolve the issue. As a temporary workaround, consider restricting the input to the json-sanitizer to minimize the risk of exploitation.

Fix

XXE

Weakness Enumeration

CWE-611

Related Identifiers

CVE-2021-23899

GHSA-MM8J-9X84-M9CV

Affected Products

Owasp Json-Sanitizer

References · 8

• https://github.com/OWASP/json-sanitizer/compare/v1.2.1...v1.2.2 · Patch
• https://github.com/OWASP/json-sanitizer/commit/a37f594f7378a1c76b3283e0dab9e1ab1dc0247e · Patch
• https://osv.dev/vulnerability/CVE-2021-23899 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2021-23899 · Security Note
• https://osv.dev/vulnerability/GHSA-mm8j-9x84-m9cv · Vendor Advisory
• https://t.me/cibsecurity/22095 · Telegram Post
• https://t.me/cvenotify/8489 · Telegram Post
• https://groups.google.com/g/json-sanitizer-support/c/dAW1AeNMoA0 · Note