Elastic App Search 7.11.x App Search Web Crawler xml external entity reference

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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A vulnerability was found in Elastic App Search 7.11.x and classified as problematic. Affected by this issue is an unknown functionality of the component App Search Web Crawler. The manipulation with an unknown input leads to a xml external entity vulnerability. Using CWE to declare the problem leads to CWE-611. Impacted is confidentiality, integrity, and availability. CVE summarizes:

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.

The weakness was shared 05/14/2021. The advisory is shared for download at discuss.elastic.co. This vulnerability is handled as CVE-2021-22140 since 01/04/2021. The attack can only be done within the local network. The successful exploitation needs a simple authentication. There are neither technical details nor an exploit publicly available.

Upgrading to version 7.12.0 eliminates this vulnerability. The upgrade is hosted for download at discuss.elastic.co.



CPE 2.3infoedit

CPE 2.2infoedit


VulDB Meta Base Score: 5.5
VulDB Meta Temp Score: 5.3

VulDB Base Score: 5.5
VulDB Temp Score: 5.3
VulDB Vector: 🔒
VulDB Reliability: 🔍



VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍


Class: XML External Entity
CWE: CWE-611
ATT&CK: Unknown

Local: No
Remote: Partially

Availability: 🔒
Status: Not defined

Price Prediction: 🔍
Current Price Estimation: 🔒


Threat Intelligenceinfoedit

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍


Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: Elastic App Search 7.12.0


01/04/2021 CVE assigned
05/14/2021 +129 days Advisory disclosed
05/14/2021 +0 days VulDB entry created
05/16/2021 +2 days VulDB last update


Advisory: discuss.elastic.co
Status: Confirmed

CVE: CVE-2021-22140 (🔒)


Created: 05/14/2021 07:17 AM
Updated: 05/16/2021 01:11 PM
Changes: (5) source_cve_assigned source_cve_nvd_summary vulnerability_cvss2_vuldb_tempscore vulnerability_cvss3_vuldb_tempscore vulnerability_cvss3_meta_tempscore
Complete: 🔍


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