Vulnerability CVE-2021-3012
Published: 2021-04-08

Description:
A cross-site scripting (XSS) vulnerability in the Document Link of documents in ESRI ArcGIS Online before 10.9 and Enterprise before 10.9 allows remote authenticated users to inject arbitrary JavaScript code via a malicious HTML attribute such as onerror (in the URL field of the Parameters tab).

Type:

CWE-79

 (Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting'))

CVSS2 => (AV:N/AC:M/Au:S/C:N/I:P/A:N)

CVSS Base Score
Impact Subscore
Exploitability Subscore
3.5/10
2.9/10
6.8/10
Exploit range
Attack complexity
Authentication
Remote
Medium
Single time
Confidentiality impact
Integrity impact
Availability impact
None
Partial
None
Affected software
ESRI -> Arcgis enterprise 
ESRI -> Arcgis online 

 References:
https://blog.bssi.fr/cve-2021-3012-vulnerability-allowing-remote-html-javascript-code-injection-on-esri-arcgis-products/
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