5.4

CVE-2021-37936: elastic kibana Cross-site Scripting

CVSS: 5.4v3.1MediumModified
Published 18-11-2022Last modified 29-04-2025
Open JSON

Vulnerability summary

CVE-2021-37936 is a medium (CVSS 5.4) Cross-site Scripting vulnerability in elastic kibana. EPSS estimates a 0.49% chance of exploitation in the next 30 days, higher than 40.5% of scored vulnerabilities.

Overall risk
22/100
0100
Low · default modelHow is this calculated?
CVSS score
5.4/10
010
Medium · v3.1 (CVE.org)
EPSS score
0.49%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Timeline

  1. 18-11-2022
    PublishedVulnerability first disclosed.
  2. 29-04-2025
    Last modifiedVulnerability information updated.

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.

CVSS metrics

2 scores · 2 sources · 1 version

EPSS trend

Probability

0.49%

Chance of exploitation in the next 30 days

Percentile

41%

Versus all other CVEs

30-day change

0.00 pp

From 0.49% on 19-09-2026

19-09-202619-10-2026
EPSS score
0.49%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Elastic1 product
  • kibanaversions before 7.14.1 | < 7.14.1

1 vendor · 1 product

References

2 links