CVE-2021-23899

Description

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.

Category

9.8
CVSS
Severity: Critical
CVSS 3.1 •
CVSS 2.0 •
EPSS 0.44%
Third-Party Advisory github.com Third-Party Advisory github.com Third-Party Advisory google.com
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
https://github.com/OWASP/json-sanitizer/compare/v1.2.1...v1.2.2 third party advisory patch
https://groups.google.com/g/json-sanitizer-support/c/dAW1AeNMoA0 third party advisory
https://github.com/OWASP/json-sanitizer/commit/a37f594f7378a1c76b3283e0dab9e1ab1dc0247e third party advisory patch

Frequently Asked Questions

What is the severity of CVE-2021-23899?
CVE-2021-23899 has been scored as a critical severity vulnerability.
How to fix CVE-2021-23899?
To fix CVE-2021-23899, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2021-23899 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2021-23899 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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