CVE-2021-22140

Description

Elastic App Search versions after 7.11.0 and before 7.12.0 contain an XML External Entity Injection issue (XXE) in the App Search web crawler beta feature. Using this vector, an attacker whose website is being crawled by App Search could craft a malicious sitemap.xml to traverse the filesystem of the host running the instance and obtain sensitive files.

Category

7.5
CVSS
Severity: High
CVSS 3.1 •
CVSS 2.0 •
EPSS 0.37%
Vendor Advisory elastic.co
Affected: Elastic Elastic App Search
Published at:
Updated at:

References

Link Tags
https://discuss.elastic.co/t/7-12-1-security-update/271433 vendor advisory

Frequently Asked Questions

What is the severity of CVE-2021-22140?
CVE-2021-22140 has been scored as a high severity vulnerability.
How to fix CVE-2021-22140?
To fix CVE-2021-22140, 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-2021-22140 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2021-22140 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.
What software or system is affected by CVE-2021-22140?
CVE-2021-22140 affects Elastic Elastic App Search.
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