High severity · published May 13, 2021
CVE-2021-22140
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
7.5
CVSS
1.3%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
High
Integrity
None
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)1.3% · higher than 70% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
EA
Elastic App Search · Elastic
7.11.0 before 7.12.0 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2021-22140
CVE.org
https://www.cve.org/CVERecord?id=CVE-2021-22140
Vendor Advisory
https://discuss.elastic.co/t/7-12-1-security-update/271433
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