CVE-2021-23899: XEE
First published: Wed Jan 13 2021(Updated: )
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.
Credit: cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| OWASP Java HTML Sanitizer | <1.2.2 |
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Reference Links
Frequently Asked Questions
What is CVE-2021-23899?
CVE-2021-23899 is a vulnerability in OWASP json-sanitizer before version 1.2.2 that allows an attacker to inject arbitrary HTML or XML into embedding documents.
How severe is CVE-2021-23899?
CVE-2021-23899 is rated as critical with a severity value of 9.8.
Which software is affected by CVE-2021-23899?
OWASP json-sanitizer versions up to but excluding 1.2.2 are affected by CVE-2021-23899.
How can an attacker exploit CVE-2021-23899?
An attacker can exploit CVE-2021-23899 by providing crafted input that results in the emission of closing SCRIPT tags and CDATA section delimiters by the json-sanitizer library.
How can I fix CVE-2021-23899?
To fix CVE-2021-23899, update to version 1.2.2 or later of the OWASP json-sanitizer library.
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