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CVE-2021-23899

Good to know:

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Date: January 13, 2021

OWASP json-sanitizer before 1.2.2 may emit closing SCRIPT tags and CDATA section delimiters for crafted input. This allows an attacker to inject arbitrary HTML or XML into embedding documents.

Language: Java

Severity Score

Related Resources (5)

https://github.com/OWASP/json-sanitizer/commit/a37f594f7378a1c76b3283e0dab9e1ab1dc0247e
https://github.com/OWASP/json-sanitizer/compare/v1.2.1...v1.2.2
https://groups.google.com/g/json-sanitizer-support/c/dAW1AeNMoA0
https://nvd.nist.gov/vuln/detail/CVE-2021-23899
https://www.mend.io/vulnerability-database/CVE-2021-23899

Severity Score

Weakness Type (CWE)

Improper Restriction of XML External Entity Reference ('XXE')

CWE-611

Top Fix

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Upgrade Version

Upgrade to version com.mikesamuel:json-sanitizer versions:1.2.2

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CVSS v3.1

Base Score:
Attack Vector (AV): NETWORK
Attack Complexity (AC): LOW
Privileges Required (PR): NONE
User Interaction (UI): NONE
Scope (S): UNCHANGED
Confidentiality (C): HIGH
Integrity (I): HIGH
Availability (A): HIGH

CVSS v2

Base Score:
Access Vector (AV): NETWORK
Access Complexity (AC): LOW
Authentication (AU): NONE
Confidentiality (C): PARTIAL
Integrity (I): PARTIAL
Availability (A): PARTIAL
Additional information:

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