CVE-2021-37936

Description

It was discovered that Kibana was not sanitizing document fields containing HTML snippets. Using this vulnerability, an attacker with the ability to write documents to an elasticsearch index could inject HTML. When the Discover app highlighted a search term containing the HTML, it would be rendered for the user.

Category

5.4
CVSS
Severity: Medium
CVSS 3.1 •
EPSS 0.84% Top 30%
Vendor Advisory elastic.co Vendor Advisory elastic.co
Affected: Elastic Kibana
Published at:
Updated at:

References

Link Tags
https://www.elastic.co/community/security/ mitigation vendor advisory
https://discuss.elastic.co/t/elastic-stack-7-14-1-security-update/283077 mitigation vendor advisory

Frequently Asked Questions

What is the severity of CVE-2021-37936?
CVE-2021-37936 has been scored as a medium severity vulnerability.
How to fix CVE-2021-37936?
To fix CVE-2021-37936, 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-2021-37936 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2021-37936 is being actively exploited. According to its EPSS score, there is a ~1% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2021-37936?
CVE-2021-37936 affects Elastic Kibana.
This platform uses data from the NIST NVD, MITRE CVE, MITRE CWE, First.org and CISA KEV but is not endorsed or certified by these entities. CVE is a registred trademark of the MITRE Corporation and the authoritative source of CVE content is MITRE's CVE web site. CWE is a registred trademark of the MITRE Corporation and the authoritative source of CWE content is MITRE's CWE web site.
© 2025 Under My Watch. All Rights Reserved.